In a word... No? Were you tracked? How would you have felt if told you were being so or possibly worse... Not knowing and then being sprung? How about the times you were purposely hiding from your parents just to stay out a little bit later? Kids still deserve some freedom.
Honestly, times have been have pretty fucked up for thousands of years before we got here and will continue to be so after we're gone probably... How does tracking all kids solve that? And what happens when said tag inevitably get hacked?? Yeah, peados don't use tech do they?!!
It's a fair question but a dangerous philosophy. Take kids freedom away, then they are already conditioned for having none as adults. I suppose it's the next logical step our fucked up society will take.