Besides some filthy cultures in the East, the majority of Eastern cultures have cleanliness even baked into their faith affecting everything from how they shower to how they pray to how they eat.
I put "dirty" in quotes for a reason. People are just expected to hold themselves to a higher standard of cleanliness in other cultures instead of hacking around it with copious amounts of plastic.
Much of the rest of the civilized world holds cleanliness in high(er) regard, but they're not germophobes.
Hand washing doesn't need to be constant to be effective in the vast majority of situations, especially the situations where you're setting up a big bunch of items and you could wrap them.
Besides some filthy cultures in the East, the majority of Eastern cultures have cleanliness even baked into their faith affecting everything from how they shower to how they pray to how they eat.