You already feel it. The flashing, the nagging, the ad that pops up the second your three-year-old is hooked. You are not imagining it, and it is not an accident. It is the business model.
of apps for children five and under carry advertising. Among free apps, it is 100%.
Meyer, Radesky et al., Journal of Developmental & Behavioral Pediatrics, 2019 (135 apps).
that Fortnite's maker paid the FTC, in part for design tricks that pushed players, many of them children, into charges they never meant to make.
Federal Trade Commission, 2022. The $275M piece was the largest COPPA penalty ever.
that YouTube paid for collecting children's data to target ads at them, without asking a parent.
FTC and the New York Attorney General, 2019.
A free kids' game is free because something is being sold, and it is not the game. It is your child's attention, rented out to advertisers, and your child's data, collected and brokered. The adtech that follows adults around the internet has been pointed at a four-year-old who, by every measure in developmental research, cannot yet tell an ad from the game it interrupts.
They call it engagement. Your pediatrician has other words for it.
The industry has a name for it: dark patterns. The "unlock" button that appears mid-tantrum. The streak that punishes a child for stopping. The reward for watching just one more ad. These are not bugs or lazy design. They are built, tested, and tuned by people who know exactly how a small brain responds, and regulators now hand out nine-figure fines for them. The fine is a rounding error. The pattern is the point.
A child cannot consent to being tracked, profiled, or sold to. The law half agrees, which is why these companies pay COPPA penalties on a schedule. They treat the fine as a cost of doing business, because the business is good. The tactics built to capture grown-ups are simply more effective on someone who has been alive for thirty-six months.
An adult can close the ad. A three-year-old just learns to want what it is selling.
Cairn makes learning games for ages 3 to 6 on the opposite set of rules. Every game has to clear all six before it ships.