'How to intervene?' Listener question

I'm hoping you can help me see something new around worry and preoccupation with my Grandchildren. I can see that the Parents are doing the best they can from what looks true for them, but from my perspective I can see how much of it is based on misunderstanding. And I see my Grandchildren soaking it up (as the learning sponges that they are) and I just want to jump in constantly and say no - don't believe it! For example, my Son and his Wife put my 12 year old Grand Daughter on anti-anxiety medication because they see her emotions as a problem. I feel helpless to stop any of it and I spend way too much time thinking about it. Can you help shed some light on this?