He needs to do this "eyes wide open", and drive that way. Don't even think about doing it without stopping except for gas & food (like I/we did), but take a break .... whenever you need to ..... whether 2, 4, 6, 8, or 11.5 hours in. Driving "drowsy" for 15 minutes in order to get to a planned stopping point or destination.... just NOPE!
Don't be stoopid like many of us have been before..... and he'll be just fine dad
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