Speaking from a German perspective I feel like the Fridays for future movement has significantly affected (parts of) her generation. I have many colleagues whose kids are focusing on a diet with less environmental impact and also asking their parents to change.
It is impressive that it has been such a long running and wide spreading movement and I am sure that there will be many politicians, activists and entrepreneurs coming out of this movement in the future.
It is hard to expect anything more from a child who has been belittled constantly. I wish I would be standing up for my believes as strongly as she does.