Google has started rolling out a significant update in the United States: the use of machine learning to estimate the age of signed-in users. This latest move is designed to strengthen protections for people under 18 when using Google products and has important implications for advertisers, publishers, and marketers around the world. Why Is Google Making This Change? Protecting young people online has become a top priority for tech companies and regulators. After increasing concerns about data privacy and exposure to inappropriate advertising, Google is taking steps to reduce risks for under-18s. By leveraging machine learning, Google can now estimate a user’s