I know in Vietnam lots of 19 years old kids flew dangerous combat missions , but that was deliberate ,as at this age one does not ask questions when told to drop napalm on targets if they were civilians around.
I'm quite sure that most (all?) older pilots had the same (perhaps stronger) "no questions asked" mind set during a hot war. I'm certain that lots of older pilots had a "no questions asked" mind set when their finger was over the pickle to release a nuke on a city full of civilians.