Sensible adults don't give opinions because they are wary of politics.
It's fine to be opinionated if your opinion is backed up with experience. Young people by definition lack that experience.
It's not fine to be opinionated if your opinion would cause politics. Even if you're right - you're screwed.
I was very opinionated and had a bunch of random knowledge to back up my opinions when I was young. I had a lot of confidence that I actually knew a lot.
Then at some point, some people started saying that I was almost right, but not quite. I didn’t have all the info. Just some. Sometimes I was just wrong. Was I getting stupider, or was I finally being called out?
I think learning you don’t have all of the answers and restraining your opinions is an important part of becoming a sensible adult.