The marketplace will take care of it.
How many people would patronize a restaurant that didn't require basic hygiene from their employees.
Liberals might, but that's only because they can't think for themselves and require instruction for even the most basic human activities
You are really ignorant if you think any restaurant owner is going to be stupid enough to post a sign saying "We don't care if our employees wash their hands after they use the bathroom" - only ignorant conservatives can come up with such idiotic suggestions.
That's not how it would work.
Liberal restaurants would maximize their profits by reheating yesterdays leftovers in toilet water and serving it as Today's Chef Specials.
Conservative restaurants would been known for their cleanliness, attention to detail and maniacal devotion to quality and customer service.
^ My favorite restaurant, Bravo Gianni (RIP)
That's why your economies always end in breadlines
^ Progressive Mecca where government feeds you