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

Sanitizer is rubbish at cleaning off things like marker ink and stuff. It kills germs but it doesn’t CLEAN things, really.