WASHINGTON POST - Aug 6 - Dating apps usually require that their users be above 18 or 21. But Hot Or Not welcomes anyone over 13, the absolute minimum age set by a 1998 law that governs children’s online privacy. Tinder also openly welcomes underage users. 7% of Tinder users are between 13 and 17. Most of these apps do claim to segregate the over-18s from the under-18s. Tinder only shows adult users to other adults. But it is easy to falsely register as a 14-year-old looking to hook up. COPPA, the federal statute that governs how Internet companies interact with kids, only applies to children younger than 14. And under section 230 of the Communications Decency Act, a site operator can’t be held responsible for the misdeeds of its users. Skout also allows users under 18 but it moderates them relentlessly.