Both my parents are dead, shall I ask the Lord where they met ?
You can ask. Perhaps He will answer. It may work. Who can argue with success?
As far as I know your parents met in Heaven. Why not supply that answer? It works as well as anything else (except you just informed the rest of the world of that security question).
Can I walk into a physical Apple Store and buy 10.8. on a USB stick ?
No, but if you walk into a physical Apple Store with a Mac you can download Mountain Lion and subsequently create your own USB memory-stick resident installer for use on all your Macs.
Apple explains here:
Your European credit card will not be accepted elsewhere "for your security". You have to find another way of funding your Store account if you are going to use the Store beyond the old country.
... Is it unreasonable to ask if this is kindergarten ?
You might as well ask the Lord that too, because asking here is considerably more futile.
Maybe I should send a message to Steve Jobs on iCloud to quiz my parents if he meets them ?
Joking aside, Apple is the only company I know that refuses payment with a credit card that is not linked to the postal address of a store account.
All those who "live and work" globally are forced to create different App Store ID's with a matching credit card,
to have different login ID's and passwords and last but not least to have three security questions/answers for each account.
This is indeed global thinking on Apple's side.
Even PayPal allows me to pay with any credit card and to use different billing and shipping addresses.
I find Apple's approach to solve their security problems unworthy of one the biggest IT's firms. I would be ashamed. But, as long as we customers put up with it why should Apple accomodate and oblige us?
s it unreasonable to ask if this is kindergarten ?
Engineers added this feature for your protection, due to the growing fraud cases.
If you purchase an item for the first time on a computer/device, you must answere the questions. If this feature were not there, and you got screwed over in some way, you'd be the first to complain why they had no such protection....