I'm not sure the issue is either. Yes, there are some bad actors that everyone would rather not travel with for various reasons (those who are aggressive/commit

I'm not sure the issue is either. Yes, there are some bad actors that everyone would rather not travel with for various reasons (those who are aggressive/commit various crimes on public transport for example), but then there's a much larger group that each individual might not get along with or tolerate, and that's a large part of the reason private cars and Uber type services are preferred when available. People's preferences are different, and bus/train services are always going to be a compromise in that aspect.