I'm sorta on the fence on this one because 1st of all I don't support giving young kids cell phones - worried about the brain cancer risk. But I do wish there was some sort of wrist band tracking device a parent could use at places like Disney World. When my youngest was 3 we all went to Disney World. You know how they have the rides and at the end there's a gift shop. Well I'm very safety oriented, but somehow my 3 yr old went out the door while we were in the gift shop. I turned around and she was gone and my heart sank. I ran out of the gift shop and thank God there was a Disney employee holding my daughters hand. So in cases like this I would have loved to have a tracking device. I don't think it's practical for parents to monitor teenagers for 'trust' reasons because kids will just disable the device.