I am willing to explore what is new information including of others' beliefs. But it would only be actual facts that are verified that if contrary to something I understood would change that for me. I know to not run from truth, the truth is desirable.
I inquire, but I will want to share what I think already, for it to be heard. If neither I nor another speaking with me are willing to rethink anything at all, there would be less to discuss.
I don't think it bad to ask others, at appropriate times, within some context, when there is dialogue already established, what they believe. I don't think it is bad in similar contexts to be asked about what I believe about something. I can't tell others everything I believe, still, there would be much more for that than I would ever have time for or ability to organize sufficiently for it all to be shared.