My fear is that your friend, whenever finds out how to "move"/spend his BTC, with all the excitement, will eventually fall into some scam due to the lack of knowledge regarding this world. I think I'm not giving a "world breaking" recommendation by suggesting the use of OPENDIME[1] right? I guess that it's a simple way to gift someone BTC, but I do reckon that the receiver has to know a fair bit of the inside out to being able to actually spend his/her BTC.
Another suggestion, perhaps a bit more "personal", would be something like what this guy did for his niece[2]. It would be a mini puzzle that would make your friend actually figure out what the hell is he/she supposed to do with whatever you gift him. Whenever he/she finds out the seed phrases my hopes is that he/she found out a bit more about crypto and to be extra careful with whoever funds you gave him/her...

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[1]https://opendime.com
[2]https://imgur.com/gallery/hbB1w#9yLX0fD