Every time a article like this is posted I'm just flabbergasted at the fact that 'looking behind you before actually opening a door' is such a foreign concept to Americans.
My impression is that driving education in the US is rather lacking overall, though it's of course not federalized, so there are probably fifty shades of deficiency. (That being said many driving schools here suck as well, though that's mostly a money drain for the driving students; 40 % or so failure rate in the practical exam).
I've got a British driving license and an American driving license. The British driving license was hard work. The American driving license involved little more than proving I could make the car go forwards and that I had a pulse.
There's really a 40% failure rate? That's insane given how easy it is to pass the test.