[29athrowaway]

In the baby boomer era, high school was enough to get a good paying job that could support a family.

[wisconsiway]

Fertility is not a problem in many developing countries where salaries are far, far less than that. Men and women have reproduced above replacement level for literally millions of years. It's primarily a question of status and social approval.

[StrLght]

> <...> in many developing countries where salaries are far, far less than that

So is cost of living -- these two tend to be correlated.