> Most of my friends/neighbors are constantly monitoring their teen age children's location, reading their recent calls, texts, and emails, looking at internet usage logs, etc.

I'll be very blunt: Do they really want to read text messages from their teenage daughter/son? They might regret that decision really fast.

> One of my neighbors even calls her daughter every time she sees she's driving over the speed limit and yells at her

If he doesn’t trust her why is she driving his car?