These kids are being encouraged by their parents. Parkland is a bastion of upper middle class white liberalism. I’m sure their parents are virtue signaling to each other about their kids’ “activism.” If I had kids that age I’d spend less on a house in a gated enclave and more on getting them properly educated in a private school, rather than indoctrinated in a public school.
Why not homeschool them??? Even private schools are become training grounds for liberal youths....