I tried planning a major road trip with a few friends during high school. It was going to be great. I had planned the entire route to drive around the Eastern Oregon desert, check out all the deserted ghost towns, camp out in the middle of the obsidian rock formations, the whole works.
My friends never ended up doing what they needed to do in preparation for the trip, so we never went.
I didn't get in trouble for it, and I didn't go alone, but I missed out taking a fun road trip.