Some people think of it as being unsanitary or a sign of poor hygiene, bad grooming if of a person. It being a sign of filth and not caring
If you groom your animals well, feed them a good diet, exerceise them and keep them clean (vacuumed or brush out the loose dander and dirt) then it keeps the hair trail at a minimum. We have up to 20 dogs and 6 cats running the house daily. I vacuumed the furniture and floors daily, all of 10 to 25 minutes the whole house. There’s some hair but we’re not floating in it, your black pants don’t turn white walking through the house etc. yes there’s pet hair on their furniture no big deal. If your phobic about animal hair the don’t get a live pet, stick to pet statues.
I ne’er let it get bad where it’s floating all around the house, building up artificial dogs in the hallways and I the corners, floating in the air able to drifting in the food as you eat or cook. If it’s that bad the the owners at fault for not cleaning. I’m not observe but between the dirt from the Driveway and yard and pet hair I need to do a quick once-over every day it keeps from having major cleaning days if it’s kept up.