Oya gacha: the parent lottery
"Oya gacha" (親ガチャ), literally "parent gacha", is a Japanese phrase that compares the family you are born into to gacha, the capsule-toy machines where you can't see what you get until it drops. Nobody chooses their parents or household. This page uses public statistics to look at how household income, parents' education and where you live relate to children's schooling and living conditions in Japan. It is not about ranking families or parents as "wins" or "losses".
What the phrase means
A gacha is a capsule-toy machine: you put in coins, turn the handle, and get a random prize. The random draws in smartphone games are called gacha too. "Oya gacha" expresses the feeling that you can't choose the family you are born into, and that the difference follows you through life.
The phrase can carry both a sense of unfairness about differences at birth and a resignation that "it's all decided at birth". The statistics show two things: differences by birth are real, and even so, people born into the same kind of family do not all live the same life.
About 1 child in 9 lives in relative poverty
According to the Ministry of Health, Labour and Welfare's Comprehensive Survey of Living Conditions (2025), the child poverty rate (age 17 and under) was 11.0% in 2024. About 1 child in 9 lives in a household whose disposable income, adjusted for household size, is below half the national median (the poverty line, ¥1.38 million).
Among working-age households with children, the poverty rate is 44.7% for people in households with one adult (such as single-parent families) and 6.7% for those with two or more adults. In the same survey, 82.1% of mother-and-children households and 61.5% of all households with children said living was "hard".
| Group | Poverty rate |
|---|---|
| All children (17 and under) | 11.0% |
| People in working-age households with children | 9.0% |
| of which, one adult | 44.7% |
| of which, two or more adults | 6.7% |
Household income and how far children want to study
In the Cabinet Office's 2021 analysis of the Survey on Children's Living Conditions (second-year junior high students and their parents, surveyed February to March 2021), 49.7% of students said they wanted to go as far as university or beyond. Split by household income, the gap is clear.
| Household | Want to go to university or beyond |
|---|---|
| Income at or above the median | 64.3% |
| Half the median to below the median | 38.1% |
| Below half the median | 28.0% |
| Two-parent households | 52.2% |
| Single-parent households | 34.7% |
The same report found that even in households below half the median income, 56.5% of students whose grades were "near the top" of their class wanted to go to university or beyond. Among students who said "only high school", 15.6% in households below half the median gave "I think my family doesn't have the money" as a reason, higher than in other households. How far children hope to study depends not only on ability but also on money at home.
Parents' education and household income
In the same report, 3.9% of households where both parents went to university or beyond had income below half the median, compared with 6.4% where one parent did and 19.0% otherwise. Parents' education appears to reach children's paths partly through household income.
Children in households on public assistance
Ministry of Health, Labour and Welfare figures show that, as of April 1, 2025, 39.8% of children in households receiving public assistance went on to university, junior college or vocational school after high school (23.6% to university or junior college), compared with 76.6% of all households (58.4%). 40.9% went straight into work after high school, compared with 14.7% overall. (The ministry notes that the all-household figures are calculated differently, so the two should not be compared directly.)
Where you live and going to university
Using the prefecture tables of the 2025 School Basic Survey, the share of high school (full-time and part-time) graduates who went on to university, junior college and similar is 62.6% nationwide: 74.8% in Tokyo and 74.5% in Kyoto, against 48.7% in Kagoshima and 48.8% in Okinawa. How many universities are nearby, and whether a family can pay for a child to study away from home, can change a path even with the same grades.
You can't choose your birth; choices and luck do the rest
Every number above is an average or a share for people born into a certain kind of family. Some children in low-income families aim for university, and some born into comfortable families find life doesn't go to plan. No family and no way of living is worth less than another; each is one point in the statistics.
Born in Japan, a Japanese life simulator, is built on this idea. You can't choose your birth, but you choose your schooling, work, marriage, home and spending, and luck such as illness, the economy and the people you meet adds to it. That is how lives diverge.
Try the parent lottery in the game
When you start Born in Japan, your prefecture, birth year and sex are drawn at random, along with your household's economic position (its income decile among all children in Japan), whether it is in relative poverty, whether you have a single parent, how many siblings you have, and whether a parent went to university. The odds are based on public statistics such as the Comprehensive Survey of Living Conditions; see Where and into what family you are born for details (some of the rules are game assumptions without a source).
When your life ends, the game automatically plays 160 lives from the same birth and shows where your net worth, lifetime earnings and lifespan rank among them (top X%). This is not a personality quiz; it is a game estimate of where you stand among people born into the same conditions, and it is not a ranking of the value of a life. You can replay the same birth as often as you like to see how far your choices change things.
Play Born in Japan (free, no sign-up) / The average life in Japan
FAQ
What does "oya gacha" mean?
It is a Japanese phrase comparing the parents and family you are born into, which you cannot choose, to a random capsule-toy draw (gacha).
What is the child poverty rate in Japan?
In 2024 it was 11.0% for children aged 17 and under, and 44.7% for people in working-age households with children and one adult (Comprehensive Survey of Living Conditions 2025).
What is the "parent lottery" result in Born in Japan?
It is not a personality test. The game draws your household's economic position, single-parent status, siblings and parents' education at random, and at the end shows, as a game estimate, where your net worth, lifetime earnings and lifespan rank among 160 lives with the same birth.
Sources
- Child poverty rate, poverty rates by household type, sense of living conditions: Ministry of Health, Labour and Welfare, Comprehensive Survey of Living Conditions 2025 Summary (Japanese)
- Students' hopes for further study, household income by parents' education: Cabinet Office, 2021 Survey on Children's Living Conditions analysis report (via the Children and Families Agency) Page (Japanese)
- Further study and employment of children in households on public assistance: Ministry of Health, Labour and Welfare PDF (Japanese)
- High school graduates' paths by prefecture: Ministry of Education, School Basic Survey 2025 e-Stat (Japanese) (shares calculated by this site)
The "160 lives" and the rank shown are game estimates, not real statistics. Odds and events in the game include game assumptions as well as public statistics; each explainer page marks which is which. If you are a child or young person in Japan who needs to talk to someone, the education ministry's 24-hour children's SOS line is 0120-0-78310 (free, in Japanese). Related: Where and into what family you are born / Going to school, and dropping out