A few years ago at the secondary school where my youngest sister teaches, the new college nurse (appointed on a crony basis by the shifty principal) decided to establish alcohol gel handwash stations without any consultation or testing of other options.
This irritated my sister, so she got one of her science classes to assess various different cleaning agents re their ability to kill common bacteria. Options such as scented toilet soap; plain laundry soap; alcohol gel; anti-bacterial alcohol-infused moist towelettes. Of these, the one that our long-departed great-grandparents would have recognised, the laundry soap, proved in association with hot water to be the most effective anti-bacterial hand-washing options available, as well as the cheapest.