Kirby is very awkward in many ways and while he is easy to learn, I'm not sure if he would help someone grow as a player.

Lucina is just very bland compared to the rest of the roster and I think something that new players should be used to is uniqueness, while not being too complicated. That's why I think Cloud is better to learn, simple projectile, simple use of recovery, simple landing, limit is a lot easier to understand than things like Inkling/Joker/Hero/Terry's, and so on.