I think he is asking where do people think auto gain of skills should happen.
Eg:
Tao - Heal, Spirit Sword, Poison, SFB (& Skele)
Warrior - Fencing, Slaying, Thrusting, Halfmoon (& Dash)
Wizard -Fireball, Rep, E Shock, Hell Fie, (&GFB)
Tbh given or found these are all common may aswell make all spells leant manually.