cna't believe this is still going strong

I have a question! I saw some tv show about hairless dogs, which are cool because people aren't allergic to them, but not cool because hairless gene also means they have not so many teeth! so i'm allergic to cats, but like cats, so if i get a hairless cat, will there be other stuff missing too? it's still gotta function like a cat, cuz if it can't do that then it's not useful..