It's really interesting to me how people seem to think the main issue of why people don't tank/heal is because of responsibility over just... like... people like doing damage. I enjoy maining dps because it's fun to see big numbers and kill things quickly and when I tank or heal, it annoys me how bad some dps players can be so I always go back. I've never worried about "responsibility" or any of that. Like tanks and healers aren't that hard to pick up in this game, and dungeons are for the most part, extremely linear lol.