cofty, I hear what you say about fearing for her future, and you may be right as it seldom bodes well when a person so young is given such acclaim. However, my impression is that she has her feet on the ground.
Consider, part of the discussion that she has with Mishal Husain at 5 min 26 sec on the link I gave in my previous post:
MH : How do you see your own future? You're still only 16. Are you going to carry on sitting outside the Swedish parliament? Are you going to go back to school?
GT : I hope I won't have to sit outside the Swedish parliament for long. I hope that something happens and we won't have to do this. I hope I don't have to be a climate activist anymore. I've taken a gap year from school. So my school doesn't start until August. So until August I am trying to do what I can in ways that I can contribute, but I'm really looking forward to going back to school and I just want to be just as everyone else. I want to have a normal life, not having to organise marches and so on, because that's not what I want to do. I want to educate myself and to just be like a normal teenager. But of course this isn't normal situation and we need to step out of our comfort zones.