Worth. Every. Penny. I went to my parents house with my son. He was 4. They turned on cartoons. Then he said, "Dad why'd you change the show? I don't want to watch this." It was a commercial. I had to explain commercials to my son. It was at that moment I realized how much of my tv watching as a kid was commercials.
In Québec, the Consumer Protection Act prohibits commercial advertising directed at children under 13 years of age. One negative effect is that this has made it very hard for genuine educational companies to grow. It is hard to market a product that teach kids to code if you cannot show the product to kids.
Teacher's unions publications/newsletters would be a no-brainer, as would popular blogs or Youtube channels focused on child-rearing.