>>54754983Aesthetics and the setting IMO, as well as many designs either making it all fall apart on a logical level or being just goofy under a darker tone. TROONdo wanted 10 years old to be the legal age, and it is the case in the games and anime by all means but how many married couples under 20, or under 15, have you seen in Pokemon or would feel comfortable seeing?
Or, how many moves pose a logistical problem to the onlookers such as surf, earthquake, or blizzard? Or the ones that are simply lethal, not very strong or damaging, actual moves that could kill most living creatures on contact like freeze dry or sheer cold or any ice moves above 50 base power? Or assuming humans are still for the most part like normal people from a semi-rural part of a developed country, why don't evil teams set up ambushes around their area of operations with their pokemon to kill intruders on sight? I don't think it would be fun to take a hyper fang to the neck.