>>30401415Pokemon training is considered your schooling. Problem is society has to keep going on, pokemon and their trainers are pressed into service once they become adults.
Ever notice how pokemon when used by adults are generally used in vocations? You also seem to notice that gym leaders also have to pick up a vocation as well. Adults use pokemon to work and are no longer used for training.
E4 and Champions also have jobs as well but are good enough to be trainers into their older years
