It’s true, the mechanics are not hard to grasp for a player experienced in FPS games or MMO’s. I would say learning dodge timing and parry timing in a game like dark souls or bloodbourne would be considerably harder than destiny. But learning social skills and learning how to adapt to your teammates and learning how to keep peace and understanding how your team works is much more difficult than any simulation a video game can throw at you. And destiny requires a lot of teamwork. And there are a lot of impossible people on destiny who are willing to challenge everything you say and are unwilling to be patient and work with anyone else. So I would consider that a major hurdle in itself.