[adamhp]

That's true, and it's a fair question to be asking, generally speaking. It is certainly possible, but I sincerely doubt it was more likely than the alternative.

Intuitively, I would wager those who receive support from others typically fare better in most ways—whether that is familial relationships, mentorship, or peers. I did a quick search, and depending on how we're defining "success", there are a number of studies.