I'm not an export but i can print off a wallet key and give it to someone, on paper or usb. Sure i can give that same wallet to someone else but it's pretty qui

I'm not an export but i can print off a wallet key and give it to someone, on paper or usb. Sure i can give that same wallet to someone else but it's pretty quick to check the value of a wallet before accepting it. Why do you even need physical cash? I can carry my countries currency around with me easily enough but i generally don't bother as i don't ever need to.