If ads didn't work, companies wouldn't be paying billions of dollars per year. The only way to fight it is by being vigilant and block them at the source and become truly allergic to them.
Not saying fake news has no effect on young people but it’s definitely a huge difference.
At this point I can't even go to a sports bar for a drink because being bombarded by that many ads is a legitimately stressful experience. If I'm visiting a family member who leaves the TV on in their living room, I ask if we can turn it off -- or mute it and leave the room. But I don't view these as problems: I'm recognizing a negative thing in my reality and trying to cut it out. I imagine it like a bug problem: I won't go to a bar where cockroaches are crawling all over the walls, or hang out in a room where a bunch of cockroaches are nesting in the corner. Ads are the same thing, but you have to be much vigilant to keep them out of your life because so many people have gotten used to them.
I hope folks start educating their kids at an early age to loathe ads. Middle schools and high schools ought to dissect ads in a dedicated (health?) class that showcases the manipulation tactics companies use to control viewers. But parents can do the same thing, knowing that school systems take literal centuries to adapt to new technology.
It does not make them immune to other types of disinformation or manipulation tactics. To think that you are so smart to be beyond that is just hubris.
That is an absurd assertion and you are showing an incredible amount of hubris if you think you are somehow "harder to manipulate because you've grown up with ubiquitous marketing".