>>34771651Jusgeing by how BW, BW2, XY, SM, and USUM, have the professor getting permission to send you out from your mother, or some form of parental consent to a child wandering around the country, a severe lack of your children running around the country, my guess is that you have to be a certain age to participate in the Pokémon league.
Hell, even the earlier games had you at least go tell your mom your leaving on an adventure.
