Mine does. He's half rat terrier and half whippet or Italian greyhound, similar dogs. Anyway he's not fond of the cold or the rain. When I walk him in those conditions he either has a rain coat or a sweater. If I don't do this it turns into a circus. He want to go so we go but when we get outside he realizes it's raining or too cold so now he wants no part of it. If I come back in he starts asking to go within a min. When we get outside he remembers why he ran back in and the process starts all over again. It's just easier with the sweater/raincoat At night he climbs into my bed under the covers. Doesn't bother me.
As far as sanitary goes I wipe his feet and butt after coming inside from a walk. Not because I'm trying to pamper him or anything but he did just poop and walk barefoot on the dirt and grass and I don't want him tracking it through the whole house. This is also the time I check him for ticks. The other thing is ...and I think this is strictly his personality. ..is that he does not and never has laid on the bare floor. I have those doggy beds in two rooms that he'll lay on, or on the couch. I once tried to see if he would lay on the floor. Since he follows me around I went upstairs and closed all the bedroom doors and just stood there watching him. After a while you could see he wanted to lay down but couldn't. He went over to all the doors to see if he could open them. It took a good half hour of him standing there in one place to finally try to lay down on the bare floor. And when he did it looked funny and painful at the same time. He had this look... like the floor was completely covered in cootties and he had found a small spot to carefully squeeze into in a very awkward position. Felt bad for him. I think it's because he has short fur and kinda bony and it's just uncomfortable for him like us putting our elbows or knees on bare floors.
Everyone has different outlook on animals but I don't consider dogs to be inferior to humans. Different but not inferior. Both are pack oriented both social with one another and both benefit from each other. In most cases I prefer dogs over people. Never let you down, always there for you, protect your property and your life and are happy to always be in your company regardless of your sex, race, religion, income, or politics. The one joke I always liked went something like this. Lock your wife and your dog in the truck of your car for a day. When you open it see who's happy to see you! [emoji2]