I may not be typical and am not an 18, but this isn't even close. I play the same course almost every week. I know every nook and cranny, every fairway and every green on it. Of course failure to execute is the reason I score so high.
It's not uncommon to play a new course and not realize there's a hidden hazard on the other side of a hill, for example. But unfamiliarity would account for 1, maybe 2 strokes per round. Greens might be a different story. But again, if I played a course with flat greens I'd still miss makable putts.
BTW, having Jack - or any other pro for that matter - watching me play could only cost me strokes.
I don't know anyone who looks good at 7am after being up all night, regardless if there were any drugs involved (legal or illegal). Whether it's an all nighter for work, or an all nighter for other reasons, a picture is not going to be flattering.
Because the pro wasn't there and its a bunch of university kids working in the clubhouse for the summer. Normally I would have asked the course pro, but he's not there Mondays or Tuesdays. They were more focused on hiring gorgeous brunettes who look good in golf skirts and tight tops than people who knew what was going on.
It's a beautiful course, but sex sells, not knowledge. Especially at a course 75+% men over forty.