Way less than 50% of people would actually do it and the rest of us would be burdened with paying for the program administration plus the actual device so I don't see it as working very effectively. It might be good for locating lost dogs as long as the owner data was strictly updated but less than half would probably do that. Mandatory is only as strong as enforcement and penalties attached to failure to comply & I don't see cities or counties relegating a lot of resources to an effort like this, so compliance would likely be very low.
__________________  Jeanie and Tibbe One must do the best one can. You may get some marks for a very imperfect answer: you will certainly get none for leaving the question alone. C. S. Lewis |