Make banknotes cleanable

Shouldn’t the government consider, as a safety and health issue, making banknotes waterproof and cleanable?

We deal in a lot of cash but we do not know where it comes from, where it is kept or what diseases can be carried on it or transferred by it.

Some of it is in a disgusting state and we do not want to touch it.

Australia has perfected this idea, which is a boon to surfers, etc, keeping their cash safe.

Also, how about Port Alfred building a few windmills to power water pumps to lift water from the river to the dams and/or provide electricity?