That's the reasoning of guerrillas with their child soldiers who get early PTSD. Gangs use small kids so they can't be prosecuted and are ready for use again.
I've always been against the weaponization of kids, even when I was a young communist. For fairness alone - never liked a person who was on my side for shit reasons either.
Politics is an adult world, and especially putting them in harms way for your ideology is literally psychopathic.
When a school decides the political stance of children who have parents who might be pacifists or informed better than them, firings need to happen, and depending on how close the kids get to federal procedure, also arrests.
And OFC you def don't use them as pawns in insurrections and revolutions ffs.