"Casual Gym Player--Do IVs Matter?"

#PokemonGO: I walk around for exercise, sometimes checking if any eggs have hatched. Here and there I'll try and take a gym. If I'm in a city, I use meta stuff with good stats, Blissey, etc. If suburbs/rural, just whatever I feel like regardless of IV/CP/Pokemon, etc, generally Pokemon I enjoy plopping in gyms more (I'm looking at you, almost max 96% Wailord).I do raids whenever something new comes out and more people are doing them, so I suppose I do them on the rarer side. That, or if I'm with friends.All that being said, and my playstyle, how much do IVs matter?Thanks via /r/TheSilphRoad https://ift.tt/366CMyC