Given they are sufficiently successful to be living on their own, married, and some with their own homes, whether they went to college is probably an inappropriate yardstick of success. I mean, be real. If a 25 year old is married and owns a home, but doesn't have a BSc are they a failure? What are we doing here.

OP is free to chose their metrics. I wouldn’t trade education for a home personally. I think it’s interesting how they chose their metrics.