>>52128207It is possible to wander into slightly overleaved areas or engage an "alpha" mon. If you notice an evolved form surrounded by lower mons it might btfo your team. Early on I see a group of Combee in their low-mid teens, with a Vespiqueen at level 27 so gamble if you want.
Trainers are not a requirement either, talk to them if you want a fight
>>52124796 for level scaling. Granted, I have not completed the game yet but this is what I've observed
