I don't care one way or the other if they have a handshake line really. I think right now nobody should shake hands since it is unsafe, but I agree that coaches should be able to handle their emotions enough to neither slap each other or grab each other! But since I work in education, I know for a fact that the majority of teens are incapable of handling strong emotions that quickly. I don't see it as a societal issue, but a maturity issue and yes I do think we should not put them in positions we know many of them are not prepared for! No politics just the experience of 25+ years in education! Sports is an important vehicle to teach youngsters societal values like, teamwork, cooperation, sportsmanship, perseverance, work ethic, and many others. BUT we can't think a handshake line is that important when compared with the other 40+ minutes. If a coach is teaching kids to cheat by grabbing, faking falls, putting hits out on opponents, cursing/bullying refs, switching free throw shooters they are doing far more damage! I think the idea of a choice based meeting on the court after games is a good compromise!
(I see no reason to think the punishment would be different if the coaches changed position either!)