There's definitely a difference between rural and urban requirements.
-
Analogue goes further, and can tolerate more interference.
-
Open channels allow others to jump on quickly. E.g. a hunter/hiker listening in, can jump in with critical information on a search and rescue.
-
Lower density means less people to mess with channels, and generally better radio etiquette.
-
Open radios are cheaper, and already have the required infrastructure.
Basically, it's not worth the cost/effort to upgrade. It also provides some extra benefits.
A good parent often will know more about their child than the child themselves. Unfortunately, many bad parents think they know more.
It's also ages dependent. Till the late teens, children often don't have a good handle on their internal state. They can often get there by 10-12, then teenage hormones do a number on it again.
Finally, it's down to the parents to teach the child how to understand what they feel. This also requires open and honest communications. You can't help and train them to cope appropriately, without knowing what's happening. You can't know what's happening without communication.