What's something about the US that is totally normal to a US citizen, that Europeans can't seem to wrap their heads around?

@meJess That difference was something that took me by surprise when my wife and I visited Europe! lol.

@meJess Yes, in mostly places the sales tax/VAT/whatever is on the price tag, isn't it? Plus it's pretty universal nationwide, unlike the US where the local taxes vary from state to state or even city to city.