>>37894412>Why don't they just kill all the stuffuls in Alola before they evolve?The same reason that, in the real world, we can't just kill all of the mountain lions, or tigers, or wolves, or sharks, or (insert alternative dangerous predator that attacks humans here). Bewear are native to Alola, and fill a niche. Specifically, they eat something.
Which means that, if the bewears all die, whatever they eat will be without a natural predator, and will run amok.
Alola already has problems with invasive species. Disturbing the food chain even more would just be dumb.