Earlier quoted context omitted.
Linux phones, Linux gaming machines, Linux on Desktop and Laptops, Linux VR/AR, Linux watches, etc.
Or more likely companies and people will just comply. It might give a little more fuel to open source from people who are ardently pro privacy that balk at an age signal bring implemented, but I don't think that's such a huge segment of users.
So really, both concepts can mesh.
After all, once compliant an adult is then not restricted.