Speaking as someone who had close liaisons with teh Infection Control department, MOST things are filthy.
Touch/avoid/wash what you like - You'll be carrying germs and all sorts of shite with half an hour of normal activities again!!
The amount of crap under your keyboards RIGHT NOW, for example, thet gets chucked up into the atmosphere you're breathing every time you tap a key.....
Besides, most people don't know how to wash their hands anyway.... Including doctors
As for the North/South divide... I was born almost as North as you can get and my family is from Ayrshire, yet I lived most of my life down here.
Am I a Dirty Southerner or a Soft Northerner, then?