Why no wingmen?
Having recently travelled through HKG, LHR, ORD,SFO, AUK, SYD and Toronto I was surprised to see wingmen in the US and Canada but not elsewhere. I can't recall them at CGD and Helsinki either on previous trips.
I can vaguely recall someone on a thread here mentioning wingmen some time ago and the need for them...I can understand why they are there but not why they are not there in many cases.
Are there any hard and fast rules or is it a peculiarity of US/Canada?