So nice that you and your DGD were able to do this. She will remember it forever. Some memories don't fade.
My 16 year old granddaughter is supposed to visit me for a month this summer. She has not-too-enthusiastically agreed to make herself a quilt. I gave her a second chance to say 'NO, I don't want to do that.' and she said she'd do it.
We MIGHT have a great time this summer...but we might not. Only time will tell.