[nomel]

Reality: ads are a fundamental of US commerce that kids will see.

(Assuming >= 8 yo or so) With this reality, I think reducing ads, but also getting them to understand ads, is a better approach than a silly dream of never letting them see an ad.

It's pretty easy to approach this positively, to help them learn. You make a game of pointing out the manipulation, have them identify it, and they learn to see them for what they are. You can do the same for news, where they (very) quickly learn to identify half truths, lying by omission, etc. Kids are pretty great at this sort of thing.

I personally think kids should know that people are often trying to trick them. But, that's something they'll eventually figure out it, with your help or not.