you want to know which one sold more? P5 did, even though P2 both versions had casts that were drastically more mature and older then the cast of P5, making a JRPG more westernized won't let it sell more and won't make it a better game it being a good game is whats makes it a good game.
FF12 a game nothing about the player character vann has a story with a cast full of adults about a political war with countries everywhere with characters like
sold less then many other ff games which are more japanese in nature.
No what prevents some people from playing JRPGS even though their variety is sooo vast is just the idea of "hurr durr its anime so I won't play it" thats what.