These age gates don’t achieve their stated objectives.

What they will do is allow “KidGroomer dot com” to request an age signal from a visitor. When that signal indicates the visitor is an adult, they can provide an app designed to inform parents about how to protect their kids online.

When that signal indicates the visitor is a child, they can provide an app for connecting kids with their local van-driving puppy owner and purveyor of free candy

Perhaps having your OS announce a user’s age to anyone who asks is a big fucking problem.