More so than washing poultry over the dishes? When you go #1, that can't be a big deal. When you go #2, well, your hands aren't going to be worse off than the food you got from the garden that wandering birds may have shit on, and if you're washing the dishes you're taking care of that too. If you're not washing anything well, then that's the issue.
making someone cross a door handle boundary without a plausible opportunity to wash their poopy hands is a deal breaker to me, even if only 1/3 of people are actually bothering to really soap up
Not sure about other countries, but it's extremely common in France for the toilet to be in its own room, and then the washbasin and shower in another. Not just in multi-residential either.
Dunno the history (gives a bit more flexibility: a showerer doesn't constrain the toilet), but could also be an aversion to not clean yourself in the same place you poop.
Cooking the outside kills anything dangerous there, washing it will splash it and salmonella everywhere. Black people wash chicken as part of their culture, but if you have no cultural reason to do so you absolutely should not
Most of your house is already absolutely caked in feces particles, you just don't see it. Your toothbrush has feces on it, your soap, your towels, everything
Urbanites became absolute cry babies, bring them to the farm for an hour and they would starve themselves after they learn animals shit and veggies grow in compost.