Teach him early and remind him often about how to vet his sources. Things like making sure you know who's funding what you're reading, what the political reputation of the sites you're reading on are, and so forth.
Honestly, this is probably the single most important internet skill that exists, second only to (maybe) information security / data privacy, and I didn't get my first serious classroom lesson on this until I was in my Master's degree program. This is a skill people need from goddamn grade school these days.
Yes, it can be tedious, yes it can be exhausting, but if you want to understand who is, or could be, pulling your strings, you have to understand how to vet your sources. Never learning to do this is the path to Fox News viewership.
Especially when you consider that it was coined to refer to literally impossible action. It's not meant to be about self-reliance or whatever, it's something that cannot be done.
I had a bird in my basement last summer. Scared the hell out of everybody until we realized it wasn't a bat. Then it was just a matter of herding the panicky little idiot back outside.
You could really take your pick of Vampire the Masquerade baddies.
Ur-Shulgi, for instance, who looks like a charred corpse, has led multiple genocides, is directly referred to as "violence incarnate," and doesn't seem to have a goal beyond exterminating everything he considers unclean. Depending on who you ask, that may very well be damn near everything, period.
Or Sascha Vykos, who... to call them a torturer is like saying Michelangelo kinda knew how to paint. Vykos is a monster in every sense of the word, and cruelty is both method and goal in a lot of their schemes.