I think because 20-somethings with ambitions tend to move and live in career centers. Come to SF or NYC and you'll find a lot of ambitious 20-somethings that care about their career. I know of mid-twenties women who've dumped their long term boyfriends because the boyfriends were unambitious and didn't want to get anywhere in their life other than dead end retail jobs.
If you wanted to move to such a career center, I would suggest NYC since it's close to your family and the dating is better for men there.
There is nothing wrong with wanting a social life. Having a social life is independent of career ambitions.
Take advantage of your lack of setbacks and get ahead in life.
On that point, I've been chided by my partner for having a crappy job in the Bay Area--one which offered plentiful opportunities for career progression, paid in the top quintile of one of the highest paying areas in one of the highest paying countries in the world, and which didn't have hours that were too ridiculous. That's the real danger of moving to a career-center like SF or NYC: the people who end up here score very highly on the getting their shit together in their 20s scale.
Thing is: she was right. Even though I was excelling at number 1) on the original post's three points, I wasn't super happy. And so I've moved from that to what I worry he might consider just dicking around. But it's absolutely 100% for the best.
If you wanted to move to such a career center, I would suggest NYC since it's close to your family and the dating is better for men there.
There is nothing wrong with wanting a social life. Having a social life is independent of career ambitions.
Take advantage of your lack of setbacks and get ahead in life.