Most (majority) of mentors are degen. The only reason they have Burger King crown on their head is for flexing and playing the game for very long time.

I'm not say all of them but most of them are. Everybody in the game are very helpful, if you ever need advice just ask anyone in Limsa in open chat. There are plenty of mentor who don't show off their crown and majority of people hanging out in Limsa are end game people.