You know, children's advertising in the 1980s and 1990s was heavily researched by psychologists and economists with the explicit goal of manipulating the emotional state of children to get them to bother their parents for toy purchases. I don't have any books or articles off the top of my head, but I've read several articles and analyses of how the pacing, pitch, and coloring of advertisements intended for children were designed to be as stimulating and upsetting as possible. There was also research put into when during the day and year you could play these commercials to the greatest effect, and the advertising slots at certain times were priced higher in response to this.

It is possible that this doesn't harm children. However, the deliberate injection of emotional manipulation and disunity into families with young children in order to stimulate the purchase of toys doesn't strike me as particularly good for the nation, and I don't know that I would have to think very hard about my decision if given the option to prevent it using the law.