As his parent, you know him better than anyone, but no contact for long periods of time would make me uneasy.
My teen had his freedom, but had check-in times, too. He ended up spending more time with me than I really thought he would.
It's not about trust, but about situations that might arise. Teens are still, well, TEENS and as parents we can't expect them to know what to do in every situation. I think knowing where your son is and being able to check-in with each other is important.
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