Depending on how gutsy she is, she can avoid the embarrassment:
Suggest that she learn (practice) to graciously sign the autograph, with a flourish-y, indecipherable scrawl that is her real name but in a fancy format.
Hey, they asked for an autograph, they got one.... ;-)
In any event, good luck to her and God bless. She'll no doubt have an interesting life.
She already has an interesting life. Much more interesting than my life at her age. Actually, it’s much more interesting than at my current age. LOL
She’s a great kid. Wants to teach elementary school and she is working towards her Masters. She makes us very proud.