isnt that all out of the gate once the kids press the "Im over 13 y.o"(or input false d.o.b) button to use their app/site? If yes, then Im not sure what it pro

isnt that all out of the gate once the kids press the "Im over 13 y.o"(or input false d.o.b) button to use their app/site? If yes, then Im not sure what it protects except false sense of security