200,000 years of being exposed to bacteria. What do people think has changed in the last 100 years?

I would advise being very careful in this case - no absent-minded touching of the mouth, nose or eyes and frequent hand-washing.
I wipe my keyboard if I happen to read anything in GD
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I don't wash my hands after urinating since my wang is far cleaner than my hands will be at the time, or the door handle of the toilet, or the taps, any money in my pocket etc. It's seen as the right thing to do but there are no hygeine reasons for doing so. Unless you have syphillis lol.
Now people with colds are the problem...pretty much the only problem unless you have a compromised immune system. I would advise being very careful in this case - no absent-minded touching of the mouth, nose or eyes and frequent hand-washing.
but then I also wee in the shower.
I think it should be a punishable offence for people not to wash their hands after exiting a cubicle, regardless of what they've been doing.

i take it you're joking? if not well that is just disgusting...
I think that overly clean environments and protection children have now a days is leading to higher numbers of allergies and weaker immune systems.
Yes we should be clean as to not spread infection but we need to keep our systems protecting us by letting them work. Never done me any harm as a kid(or now) playing all day in muddy fields and eating who know what.
is wee on hands bad? its sterile, your hands are covered with stuff bacteria can eat anyway so worst case you add a little bacteria food to your already food covered hands....