I have five year old, and they're nearly to the point where they could go the the park by themself if they had some sort of device where (a) we could tell where they were and (b) they could easily contact us plus (c) it was socially acceptable to do this. This would be using tracking to allow our kid more freedom, since the alternatives are (1) go to the park on our schedule and under full supervision and (2) stay home.
As kids get older we would want to pull back that kind of supervision, so that by the time they're 12 or so we can get their location with something active and visible to them, and by the time they're 15 or so we can just call or text them.
The technology can be used in a lot of ways, and whether it makes kids more or less free depends on parenting and culture.
EDIT: downvote because why?
I only want to be notified if he leaves the school premises during school hours, I don't want to micromanage his location otherwise.
Invest less time in apps and more time in trying to understand your kids.
Regardless of the relationship and understanding I have with my kids, being triggered at school to ditch it from a panic attack is not a rational understanding.
It is precisely because my son and I have a good relationship, that we can come to an agreement that he needs outside supervision and monitoring.
I attend group therapy seminars with trouble teens. Some of them have been the victim of serious abuse, like revenge porn by peers on campus. This is not something "social skills" solve.
Your own comment to me suggests you lack the very social skills you claim others lack.