I've often wondered about this, but since COVID it has been on my mind even more.
We go to the toilet, and get nasty bacteria on our hands. Then we go to the sink, put our hand on the tap to turn the water on to wash our hands, and transfer some of that bacteria to the tap. After washing our hands thoroughly, we need to put our hands on the tap again to turn the water off. The bacteria is now on our hands again.
And how about public toilets? You wash your hands thoroughly, then dry them. But then you need to put your hand on the door handle to open it. And in the back of your mind, you know that handle has been touched by hundreds of people, some of whom didn't wash their hands after going to the toilet, and many of whom didn't wash them well enough. Sometimes the door opens outwards, in which case you have to put your hand on the door to push it open, but it's basically the same outcome.
Maybe we have resolved this in some toilets/bathrooms, but it seems like the majority are still like this.
I know Japan has mostly resolved this problem. Public toilets in Japan don't have doors. All sinks in public toilets have electronic sensors so you don't have to touch anything to turn the water on. And toilets in people's homes have a little sink at the back of the toilet that automatically runs water when you flush the toilet, so you can wash your hands without touching anything.
Anyway, just wondering if anyone has the same kind of thoughts, or am I seeing this from the wrong perspective?
+1 for thinking about the same reference as I did in this moment.