If hand sanitizer kills 99.9% of germs, what stops us from using that all of the time instead of hand washing?

Question

If hand sanitizer kills 99.9% of germs, what stops us from using that all of the time instead of hand washing?

In: Biology

Answer 1

The single most life saving discovery in the history of medical science is hot soapy water. There is little need to be concerned about killing all of the germs, which is impossible, when you can just wash them off of you. In a modern city that would be sending live germs into the sanitary sewer system where there is a extremely low risk of someone being there to be harmed by them.