Also, today most paper grocery bags are made from at least 50% recycled cardboard.
The real reason most grocery stores switched to plastic was because it was cheaper. They used the green agenda to cut their costs.
I absolutely HATE the plastic bags which are about 1.5 molecules thick, and rip open if you put more than 2 cans of tuna fish in them.
Plus they don't stand up in the car trunk.
I have six reusable bags which are hell for stout (each one can handle a half dozen 2-liter soda bottles without a problem) and you'll pry them out of my cold dead hands.....I'll take my chances with the cleanliness issue since I, you know, wash my hands and clean the food before preparing it.