What Afghanistan tribesmen do with their women is ABSOLUTELY no concern of mine, or ours.
Jim; I tell my Granddaughters that in olden times people married their Daughters off at 14 for a reason.
I have done research on my family history going back 500 years and 16 seems to be a reasonable age. I seems that girls in those days dragged boys into the woods to get the Green dress. (Engagement Ring)
If you were not married at 21 you were a spinster or a hooker, just an observation.