I got carded for MK:A and I didn't have a license I don't think (DUI or physically lost it [cant remember]) but it resulted in me driving home 15-20 mins to get my passport and driving back to buy that shit.
Driving for an hour is the last thing that you want to do when you want to play a newly released game.
I was pretty pissed off, it's not like I look 16 or whatever either, but their system needs something I guess or at least someone to authorize the purchase in the case of a passport. CYA for them.