I'm 44 and spent most of my career working individually and with my closest friends on projects that felt interesting, and it went really well for us in all of the ways. I also met these friends at a selective school, though it was a state-funded high school (massacademy.org), not a university.
Also, someone once came to my very conventional elementary school in 5th grade on career day to talk about a very unconventional career path (being a full-time peace activist) and this had a huge impact on me, both because it validated activism as a career and perhaps more importantly because it validated not having a normal job.
Getting a very short lecture in school from an interesting non-teacher can be at least very memorable and perhaps life-changing.