most giftcard for bitcoin sites are for the Yanks.. not the Brits.. so in my case its still not useful, and i know kids that prefer something in hand as a direct reward for chores. and not the whole go on computer play around with a couple websites to print out a voucher / get code sent to phone ..
family i have love seeing pennies in their little purses .. and the funniest thing.. if i gave them £1 in pennies (100 coins) they think they are receiving more then if i gave them a £1 coin. well they are all under 6yo so i cant blame them..
They would be right. The intrinsic value of 100 pennies is greater than a single £1 coin.
Children generally prefer coins to paper money as well (again, the intrinsic value is higher).