That’s fair. I’m making the comparison to other hobbies. If someone is not interested in roller skating, but decides to try it out because one of their friends really likes it and invites them, they may find they enjoy it… or not, which in that case they won’t go again, which is fine. Alternatively, they find a new hobby they enjoy, and selfhosting could give skills that turn into a potential career, but that’s if they really enjoy it. I don’t think it’s uncommon for friend groups to have outsiders (me) and “force” them into trying new things, but maybe my comparison doesn’t hold up here as this is a bit less about socializing.
I haven’t tried it, but Metadata Remote is a web-based metadata editor.
Personally, I use MP3Tag with custom actions to set the tags, and MusicBrainz Picard to move files. My music isn’t on MusicBrainz, so I do the tagging myself, which usually doesn’t require too much effort from me.