You've never been to Sherman Oaks (Los Angeles). The older neighborhoods of Los Angeles have european sized streets. I clipped an E39 5 series mirror off once -> good thing I had touch up paint (to hide the ding on my passenger mirror of course).
Originally Posted by voip-ninja
There's very little use for the folding mirrors in the US where the streets are much wider and parking is less of a nightmare than it is in europe/japan where the feature originated.
My understanding is that it is not uncommon for people to get their mirrors clipped off while parking on super tight city streets in european countries, hence the desire for the feature.
A more practical feature in the US is the feature where the driver side mirror automatically adjusts when the vehicle is put in reverse to make backing/parking less of a chore.
After that, I've always folded at least my driver mirror when parked.
Freude am Fahren