I think it is important to ask yourself: why should my opinion matter to someone else?

If a group of people are trying to decide where to go to eat, then it is important to factor in a lot if information. What are everyone's dietary restrictions? What about budget concerns, time concerns, other sensory input concerns (like how most restaurants today are purposefully loud and uncomfortable to encourage faster table turnover)? And then, what are everyone's taste preferences? This is the kind of thing that has a material impact and is part of engaging with a group.

Then there cases where wanting to understand someone else's opinion is part of having a deeper relationship. You don't HAVE to, but you want to. As I am typing this I am listening to a new album from my gf's favorite band. I don't particularly like them- I find them musically uncreative and the vocals/lyrics are obnoxious and direct for my taste, but I want to understand my gf better. And our polycule is going to see them live tonight.

I don't expect my coworkers to care that my favorite Pokémon is Absol. I do expect my coworkers to care when I give best practices on how to use the software I have implemented for our department.