In my detached houses every tenant I ever had has had a pet and I don’t have any regrets. Never have owned or managed an apartment. When I rented rooms in my house a guy had a parrot. That became a problem when he was using a space heater 1500W 24/7 for the bird, but when the electric bill came he paid for it.
I don’t like screening people with dogs because everyone thinks their dogs are great, but am not against dogs necessarily. Zero pit bulls, rotweilers etc. and usually not more than one dog . I do screen the dogs before a person even gets an application.