I always try to play an unusual class and after getting my ass kicked a few times in the first fight, I start over as a fighter (or a rogue so I can scout ahead and don't get stumped by traps or locks). I'm doing it right now in the Deadfire beta. If you have to count on magic protection and good attacks that run out mid fight you have no choice but to hang back. That's a little like you're in the game's game if you know what I mean.
I look for characters that promise exciting interesting play and storyline. I don't play dwarves because they are (traditionally) slow and don't feel different enough to be compelling in spite of that. I've played Godlike in PoE but (I don't think) you can change the appearance so it hasn't become my thing. Everyone who plays is playing the same character and that doesn't appeal. I don't think I've ever played a human in an RPG. I've also never played as a white dude though I do in fact make the character resemble me as much as possible.
I currently have 3 play throughs as a dwarf. A Barb, a Battle Priest of Magran and a Chanter (Solo). I love Dwarves. Borreals for exceptional DPS builds and Mountain Dwarves for more of a RP/Story experience. BGEEs brought us Dwarven Defenders. Played that class first upon the EE releases. I have 3 close friends who played PoE, they all played at least one completed game with a dwarf. I guess they can track metrics these days via Steam and what have you but that they are saying no one plays dwarves and no one plays Priests seems very odd to me.It doesn't seems odd to me. Play any MMORPGs and watch how many DPS they are compared to tank and healers (answers: healer and tanks are super rare) and the race distribution: dwarf is always at the bottom.But this isn’t a MMORPG. I fully understand the DPS solo play of the MMORPG. POE is a completely different type of monster.It's pretty obvious that most people like to play a character that is similar to their own physiology. It's basic psychology.
As for healers, same psychology applies, people want to be leaders, not support characters.
Of course this doesn't mean everyone plays like this but we are talking about averages, not individuals.
True, and a reason I made the post asking why people play the classes that they do.
I'd say that perhaps the DPS popularity is more commonly associated with a need to feel empowered and strong, being able to enforce one's will over others. A leader can be the healer/buffer/speaker like real life leaders who orchestrate the team to their strengths.
If by enforcing your will you mean specifically beating people up as opposed to nurturing and just enjoying the success of the whole team, yes, but leading from the rear is waaaay more puppet-master-y in game.
Of course as a player you're probably directing every single character either way. Maybe you imagine shouting orders. I do. I think people like the front-line because it means taking the most risk and enjoying endless individual, victories.