RPGs are an unfortunately social pastime. I say unfortunately because a statistically significant number of humans have social difficulties which make them extremely incompatible with the significant number of humans who are made out of elbows. It would be a lot easier if you could get the same experience out of a cluster of artificial intelligences, but there is a reason person-to-person play persists as a hobby in an age of video games – the technology ain’t there yet.
Often this is just a matter of people having incompatible personalities. As in the example at the top, an introvert and an extrovert could be quite bad with each other. Political differences can spill into a game, with predictable results. Someone could have a punchy sense of humor while another is sensitive to insult.