I send my kids their weekly allowance ($5-$10) to a bank account via PayPal. The bank account links to a debit card which the kids use to make purchases from Amazon and Steam.
I wonder how many non-economist parents do something like this? Let's find out! If you have kids, how do you pay them their allowance? Shares in a gold ETF? Automatic transfers to their PayPal accounts? Old-fashioned coins and folding money?