You don’t get on it unless she puts you on it. Ask her nice.
I think I’ve already had some conversation with her since I first announced this news on another thread. She was helful and encouraging then. But I’m not the parents doing this and am careful not to be intrusive with my opinions. I learned long ago your children want your support far more than your opinions so you have to give those opinions in a supportive fashion.
Not certain the homeschooling ping would be as helpful for a grand parent as much as perhaps just posting any questions I might have to those who are on it...might be a better idea.