In regards to the noodle rule. Many courses around here have flipped the cups over and this shallows out the depth of the hole. The ball will go into the hole and you can use two fingers to remove it.
I take a small bottle of hand sanitizer and I just put some on between holes. It isnt a perfect solution but it is better than doing nothing.
If a person is still worried about touching the flag i say take some wipes with you and wipe down after each hole. And include wiping down your ball!
I am sure this is too late to order but what about a World Am Mask for every player? Then everyone would have one to wear when they go into the clubhouse during their round.