My parents were factory workers and they encouraged me to study a university degree as a sure way to a successful career. I finished my degree well into my 20s, but then the economic collapse of 2008 happened and I spent several years living paycheck to paycheck, lucky me who at least had a job.
In my late 20s I finally broke from economic stagnation by moving abroad. Then I spent the next 12 years moving countries every 2-3 years, which isn't good for stability. In fact I didn't meet who would become my wife until my mid 30s.
Now I approach 40 and have a good paying job in tech. However I'm in the US on a non-immigrant visa and my company has done waves of layoffs that I luckily survived. We are seriously considering having a child, but the prospects don't look great. Everything else aside, we don't really know anyone or have a support network here.
I know most of this is moaning and if we "really wanted" we could make it work. But it doesn't discount the fact that it's easier to start a family for someone with a stable job with a support network.