When I had a vet sim I had him running a “cat rescue” from his home and office by having the cat hangout lot trait. When sick cats would show up I would add them to the household, have him give them vet care, and then bring them to work and wait for someone to show up to the clinic and adopt them out to them through manage worlds.
I imagine you could run a cat cafe with adoptions the same way. Would be fun to add the cat hangout trait to a cafe and then pair cats with people buying coffee. And your design is super cute!