Ecuador doesn´t have a lot of washing machines. Even pretty decent houses typically have a place to hand-wash clothes rather than put them through a machine.
The discovery I made, as I attempted for the 15th time to wash the remnants of soap out of my jeans, was that underpants do in fact have a purpose – they keep you from having to wash your jeans so often.
But for those of you back in the States with laundry machines, who can wash your jeans every time you wear them, I continue to maintain that underpants are silly.
(unless they´re the lucky rocketship kind)