It could be they didn't have enough money to have kids. Nowadays most families can't afford kids at the same standard of, let's say 40 years ago with the same

It could be they didn't have enough money to have kids. Nowadays most families can't afford kids at the same standard of, let's say 40 years ago with the same amount of parents time. I think it's crucial to be at home for kids and at maximum one working parent working full time