I really don't see the point in opening a cafe that has cats in it simply to attract cat lovers as customers. These customers may also have cats at home and when people go to cafes, they simply want to relax and have something to eat or drink. I don't think I'd relax with too many cats around because they might jump on me. Besides, this is detrimental fs you want all sorts of people as potential customers walking into your cafe because there might be people who are allergic to cats and they won't be able to spend their time on your cafe. Also, depending on the type of owner, you cannot be sure if the cats are properly taken care of, if they were up to date with vaccines or if they are being feed right.
