Why do some people feel societal pressure to have kids, and how does that affect their feelings of regret or contentment later on?

Do you agree with psychologists that the best way to heal a rift between parents and adult children is through sensitive communication and empathy?
Is it possible under any circumstances for a Belgium from Kortrijk to work in Lille with no French? They speak Dutch, English, German & Italian, but never got into French at school. How would they view or take that in France, or could it actually go?