Earlier quoted context omitted.
This is the danger of anecdotes, they can lead to bias. I have a PhD and I had my first child at 28. Almost all of my colleagues have families and children, except for the one person who was unable to attract a suitable mate (and not for lack of trying). Sometimes very bright people have trouble attracting an equivalent person. The pool is that much smaller and other factors (socioeconomic, culture) still play a role…
> This is the danger of anecdotes, they can lead to bias. Your own story is also a dangerous anecdote. Without the context, it's pointless to talk about how amazing your Ph.D. experience was. Study engineering or quantitative marketing? Most likely miserable. Study humanities? Probably happier.
Regarding happiness or a Ph.D. being an amazing experience, I didn't say a word about any of that. Those seem to be some very strong assumptions around marriage/kids = happiness or engineering/marketing = misery that you're making.