Don't take the kid. Either team up with somebody with a clue, or go on a guided or semi/guided trip the first time.
Be realistic about your abilities both physical and mental, as well as your experience. No shame in starting at the bottom and hiring a guide for the first go around to shorten the learning curve.
When you get good, start hauling the kid. Having a kid in tow isn't the time to be figuring things out.
