Quoted By:
>2014
>evolving your starter regardless of role playing
>evolving any of your in-game pokemon
>not running mildly hard mode with pre-evos, set battle, no using items during battle, and limiting pokemon center usage
git
gud
And now with most hidden abilities being exclusively available post-game, well as pre-evos gaining more exp, it gives more incentive to use the adorable bastards. But I've been doing it since generation 3.