Sorry, cross posted, but I'm worried about that other poster 💐
Your original question can't be answered easily.
I think if 'everyone' says x but you think y, then you should have a good think about WHY that is and be open minded to change, but if after a good think you still feel you are right, then that's your decision.
Except, there's always the worry that the person isn't thinking straight. People who feel suicidal often think others would be better off without them, 'everyone eise' says they wouldn't. The mentally ill person could think about the situation, still decide that 'everyone else' is wrong...and take action.
On the other hand, you could paint your sitting room bright red, 'everyone else' could think it's too bright, you might not, you are right if YOU live there & like it.