Years pre COVID I sometimes encountered public restrooms in buildings managed by germophobes where there would be a special dispenser right by the door that dispensed little cocktail-napkin sized single sheets of extra flimsy paper towel material.
The idea is that after washing and drying your hands at the sink you grab one of these sorta-tissues from the door dispenser, use that to grab the filthy evil wet-from-previous-users door handle and pull the door open, then drop the soiled towel delicately into the wastebasket below the dispenser, preferably while wearing that look of genteel sneering disgust on ones’ face that one has while contemplating someone else’s dog’s shit on the sidewalk.
My office used to have a trash can right outside the restroom door, for people who wanted to do that. You had to retain your paper towel from near the sink, though.
Sounds really useful, especially the coming back on at the same temperature part. Our kitchen tap is so hard to get to the right temp, and then you have to leave it running if you want it to stay there.
I think you’re right, but I do understand the OP’s question. After all, when you use the toilet, you presumably get “boxer-shorts region” germs (coliform bacteria) all over your hands. Then, to wash your hands, you have to touch the knob to turn on the faucet, and some of those germs get transferred to the knob. After washing, you have to touch the knob again, and those germs get transferred from the knob back to your newly-washed hands.
It’s not something I worry about, but it’s not an unreasonable question.
I don’t need privacy for the “washing of hands” part. If possible, I open the door after flushing but before washing my hands. Of course, this depends a lot on the actual layout and if the doors close automatically. Sometimes it is not an option, but sometimes it is.