Many youth in schools are indoctrinated in the idea they should not believe in anything which lacks conclusive evidence.
This is why climate change denialists exist..
They think they should not believe in climate change unless someone can prove 100% it is real.

Yes, they are indoctrinated with leftist propaganda like climate change, multi-culturalism, the idea that we're all some "community", identity politics, victimhood, and many other problematic seeds of division.
Appropriation of science as a tool to give their propaganda false authority is fairly common. Hitler relied on eugenics, a branch of evolutionary theory, as the basis for his regime's genocide.
Man-caused climate change cannot be proven 1%, let alone 100%. Give us an answer to the question I asked a few posts back:
"Why is every "solution" to climate change something to do with expanding govt power, increasing taxes, increasing regulations, coercing companies into producing unnecessary "green" products - all of with have ZERO affect on the alleged cause of climate change?"