the biggest questions detective pikachu answered
no one but professional trainers has a full team of 6 in the pokemon universe because it would be a fucking gigantic hassle to deal with 6 animals, let alone different types that need different things
some people don’t evolve their pokemon because imagine having a fucking cat and then you can choose to make the cat five times as big and strong. would you do this if you weren’t battling.
Technically if your cat isn’t battling it doesn’t evolve.
That does however give cat owners a strong incentive to not let their cat outside, because realistically any cat that is allowed to roam free is gonna rack up exp until it evolves.
I let my litten out one day and a week later incineroar rips my door off and demands wet food only