Earlier quoted context omitted.
You say you disagree, but your experience doesn't support that. "It was hard and it required sacrifice." because of the implicit bias brought up by the GP. For someone in their mid twenties, no relationship or dependents, moving for 3 months is no big deal. Good, even.
Yes, it's easier to start a company and take risks when the only person you have to worry about is yourself. This is the case in anything you do whether it's starting a company, traveling, trying to become a professional basketball player, etc. Are you suggesting YC help someone take care of their kids?
No, how did you get that? I'm also not suggesting they shouldn't. It's just not at all what I was talking about.