Why do you feel like you would be less clean? Like peas touching carrots on a plate? You have 1 body.
IMO the different sized towels are all towels and are sized for convenience. If you only wash your hands you don’t want to have to use a blanket to dry them. When you wash your body you don’t want to use a box of tissue sized towels to dry off. It isn’t about contaminating part of your body.
Maybe when the car is serviced? After you Bluetooth connect to have hands free calling and music
My guess is that they think anything negative about Trump is a conspiracy. He seems to blame the world and is always sharing his opinion.