How many Buckeye fans actually know/interact with Michigan fans in real life(not the internet) and where does the dislike of them come from for some people?

I'm from Toledo and half my family is from Detroit and are Michigan fans. So I know a lot of Michigan fans and have a perspective on both sides of the border. Now in my experience most of the a-hole UofM fans are from south of the border, the rivalry can be crazy in Toledo and Northwest Ohio. But in Michigan or with anyone from Michigan I've never really encountered any, not even in Ann Arbor bars wearing OSU gear. Football games probably can be another story, but I've never been to a game in Ann Arbor. So I've never had any reason to dislike UofM fans from Michigan, where the vast majority of the fans are from.

I'm asking because some people here in Columbus and on this board seem to have intense dislike of UofM fans for reasons that I do not understand, most of the people here are not from Toledo or NW Ohio. Maybe a lot of the UofM fans in Columbus/Central Ohio and other parts of the state are also a-holes, I see them around Columbus but have never interacted with any of them or maybe people were simply raised/indoctrinated to despise them.