@IceyJ I added a mod to my game that allowed me to add the cat friendly and cat hangout lot traits to it. Honestly, it doesn't work very well as the owner, so I just take my households many cats to work with her. The kitties always have a lot of fun in the space. Because when you're the owner and open the shop it seems to prioritize customers coming by instead of cats. Once I close the shop, the cats and strays start to swing by. But I've visited as a guest as well and there were other cats hanging out at the lot then.
This is the link to the forum I downloaded it from: User "anska" provided it. Their link takes you directly to the download page.