Hello, I have 2 KittyCatS! a male and a female. They rarely interact with each other or roam near each other, but my sister has 2 males and they are always playing together and roaming near each other etc. She has hers on follow and I don't. could that be issue or is it some other reason?
Follow shouldn't have anything to do with it; I never use follow. I'd check to make sure that their ranges overlap substantially - that they're close enough to each other to interact. Is there anything about the land terraforming that would make it hard for them to get to each other? Subtle differences in placement can make a difference.