👉Bluewallet mobile app👈
later you can help him w desktop electrum or sparrow on spare offline laptop.. he needs to verify that software through pgp and connect to own node/server (or any trusted friends' node/electrs server) if he wants to do it right anyways..
so, in this case, if it's a significant amount then Bluewallet is not any worse of an option, yet quicker and easier to follow without your help for now
imo