To be honest I don't feel comfortable speaking on this because I don't know how old she is & in general I don't think approaching celebrities through their families is a good tactic. I hope that she has the morality to support this issue/bring it up to her siblings without being spammed by fans.

Honestly I don't think that the kids are not speaking up because they're somehow not aware of how important it is. All of this to say I don't think this would help - he will either speak up or he won't. We have to reconcile that with ourselves and do what we can individually.