"“This behavior by YouTube and Google is estimated to have impacted hundreds of thousands, to potentially millions, of children across the United States,” the senators wrote." https://www.nytimes.com/2023/08/17/technology/youtube-google-children-privacy.html

YouTube Ads May Have Led to Online Tracking of Children, Research Says

YouTube’s advertising practices on kids’ channels could have resulted in companies tracking children across the web, a report said.