One could also ask why in the world you feel like you need 50+ 2-star wolves. They don't NEED meat (you do know they can't starve, right?), you just want to breed them excessively (like, entirely overboard) for some reason. Regardless, for most players, a fishing pole comes LONG before the mountains. It's pretty obvious why you'd fish, it's to get better food. It's like asking why people would bother farming carrots when onions exist. They're available sooner.