Instead of going ad hominem you could also give a counterexample

Could you provide an upside?

You could use it to find the lost kid in a crowded stadium. Or find lost people with dementia anywhere.

You can simply equip those people with a tracker. Then it also works if they leave the stadium. Put them in their shoes and you dont need their cooperation either.

If they dont have any just put the persons picture on the stadium screens.

But my point would still stand even if I couldn't provide an example either. The burden of proving that a technology has no significant benefits should fall on the people trying to ban it.

You do realize that proving non-existence is rather ... difficult?