Originally Posted by
PTravel
Right on the nose!
In cramped quarters, I'd rather my wife share my space than some stranger. That doesn't mean we won't travel if we can't get seats together -- that happens often. We won't self-combust. However, we're both more comfortable when pressed up against each other, as opposed to pressed up against strangers.
+1. One more reason is that often we are sharing a carryon bag with books, magazines, snacks etc.
I would not ask someone to switch seats with me, but given the personal space issue, I will admit to being mildly annoyed by people travelling together who take aisle/window of a 3-across row.