This is both important and unsurprising, but I'm not sure of causality. That is, people calling trans youth by their correct names" may be a proxy for other respectful and kind treatment by family and school, and for having supportive friends. On the other hand, it might be a starting point: "even if you don't understand, calling your grandchild by their chosen name may save their life." (In particular, I can see that being useful for things like "Mom, let's not argue about your granddaughter's 'real' gender. Her doctor says that if we call her the name she chose, she's more likely to survive, and as a parent, that has to be my priority."
(no subject)