FWIW, I went to a public middle school in rural Michigan in the 90s (not exactly a liberal bastion), and we learned how to differentiate between untrustworthy/legitimate sources on the internet. It may have just been a one or two computer lab sessions, but it has stuck with me.

So, while I’d support a policy from high that guarantees everyone this type of education, a single computer lab teacher can have a major impact on their own.