Wow. Wall-e is truly becoming real.
I was going to say that it looks like something out of a Terry Gilliam movie.
Aside from all the gaping flaws in the "let the market decide" or "don't buy it if you don't like it" arguments already made, there's one I didn't notice: When a product is targeted specifically at infants or small children, the person doing the deciding is not the one who has the potential to be harmed by it if there is indeed something fundamentally wrong with the product. In some cases, in fact, the benefit may be to the actual person doing the buying, while the harm may be passed on to the infant.
Smoking around an infant, for example. The parent may enjoy it, but the infant has no choice and can be substantially damaged by the act.
Or take it a step farther--let's say there was a legal, over-the-counter sleep aid drug for infants. A lazy parent could, for their own benefit, just keep their infant drugged up to keep the kid from making too much noise. This would almost certainly cause irreparable damage to the child's development. The child has no ability to make a decision about this one way or the other--it is forced on them by the parent.
Any parent can abuse their child, but laws exist for the protection of children specifically because they are not able to do so themselves, and must rely completely on their parents to raise them. If lazy parents start strapping their kids into a seat with a colored light show on an iPad in front of their face so they can go watch a movie--being told it's "educational" while, let's say hypothetically it actually causes stunted cognitive development--that ranges from either criminally false marketing of a product that is explicitly harmful to infants if used as intended, to child neglect if the parent understands the hazards of it and uses it anyway.
If, indeed, doctors have determined you shouldn't have your kid with a screen in front of their face for any significant amount of time before the age of 2 lest it cause some sort of permanent issue, then a product designed to do exactly that should not exist, any more than "baby vodka" or My First E-Cig.