I do have some, but I'm gonna go with the most wholesome one:
I don't mind seeing older people, especially those in their 30s, 40s or 50s, in my uni classes. In contrast, I actually admire them a lot for still having the curiosity, the desire to learn, and especially the courage to start fresh and chase their dreams despite their age (at which the idea of learning or exploring is usually shunned). I've talked to some of them from time to time and listened to their stories. These people have definitely lived, and they have my whole respect.
PSA: It is never, ever too late to learn something new or to realize your dreams. Curiosity does not age.
(Don't know if that counts as an unpopular opinion, but I haven't really seen many posts about this. I hope this can be a spark of positivity, especially for the studyblr community that mostly comprises of young people who are stressed about our lives' purposes, not doing enough, and not having enough time)
Thank you so much for the ask 💓
(and sorry for this late answer)