Children are no longer taught History(the meaningful facts) in school and are once again flocking to the cause of one who has had a "vision". Just like in the original "Children's Crusade". They are likewise being tricked and sold into slavery before they get to the promised land. As in the Pied Piper of Hamlin, which was likely based on this event, the piper will need to be paid and the children are on a journey from which there is no return or happy ending.
Greta Thunberg is fine as she is. Funny how the bullies *** her off for her looks, her aspergers, or accuse her of being in the energy companies pocket with no evidence. Real tough guys attacking a 16-year-old. If you disagree with her try debating her instead