Aah... easily solved. Just find a protege :D Like Tony Stark found Peter Parker ^^ Even if they could get kids or adopt, doesn't mean the kid(s) want have the same career. So. Protege it is.
True. that is definitely one way to go about it. The only issue I can see coming with that would depend on how traditional the family is. Like if they believe in the whole "passing down the bloodline" thing. I think it would totally cute to see them adopt though :D
Pls just adopt. Thanks author!