I am a 20 year old girl I came with my friend to do some shopping. When we came to the till to pay then the lady by the till told me that I am too young to pay by card. I need to prove to her that it is my card. It was the first time I was asked to prove that I am my age. And the first time I wanted to buy something and wasnt allowed to. User's recommendation: If you are taken away the right to pay do something about it as it is wrong.