I think I just figured it out, hang on with me.

It’d be the tech literate person in the family. The nephew that’s working as a programmer or something like that. Now, if that nephew has some interest in stealing their uncles money, they now have access to their bank account through a freely rooted phone.

This gives them a lot of options, which I don’t have to explain.

Given that a lot of scams actually happen between presumed family and friends…

Yeah I kinda get why banks are doing this