As for the hypoallergenic dogs, hairless cats, I have an allergy to cat saliva, so hair or not, I wouldn’t be able to tolerate it. I know regular cats lick their fur. Do hairless ones still bathe themselves?
We briefly owned a bedlington terrier a few years ago, a dog with curly hair (not fur), that was supposedly hypoallergenic. My son was still allergic to her anyway. We’ve pretty much determined no cat or dog would be good for us.