If you go far enough back in time, Americans and Europeans are virtually of the same blood. Heck, they still are without the time travel, but other factors played a role in why there’s a certain kind of cultural and social divide. The big pond between the continents being one of them.
Still, differences ought to be celebrated and folks online choose to do that by pointing out what’s normal in Europe (and other places, really) but might look weird to the average American. As per this Reddit thread.
