Oh my god! I don't know why you got this idea, but it's really a scary idea! Giving bitcoin is good, but not paper wallets, we have a whole bunch of security issues on a paper wallets. You can donate bitcoin in many different ways, a hardware wallet maybe is the best gift for your relatives. You should also choose a cryptocurrency whose future can bring big profits. I have no suggestion, because it's not my specialty, but if it's you, it's not difficult to choose a coin for gift, right? Good luck!