Nothing guarantees employment, but some factors almost guarantee a low income.
You can't be sure if you'll be okay, but if you already know that you definitely won't be okay - well, then you probably can't afford to have kids.
You can't be sure if you'll be okay, but if you already know that you definitely won't be okay - well, then you probably can't afford to have kids.
This "okayness" is something people determine by looking at their community and peer group, not by looking at statistics. It's the same effect that causes the middle class to buy houses and cars that it can't really afford.