So how does grandpa fill about taking up the guitar for a while? If the granddaughter does not live too far away, it could be great 1 on 1 time and with you both learning at the same time. She would see she is not the only one having trouble make this note or making the fingers do whatever. It may inspire her to stay with it longer, even if you stop learning when she starts getting things worked out a bit.

Like they say, time is the most precious gift you can give a growing/learning child. Maybe your still working and do not have the time yet, but you were asking for idea’s.