That is a factor, but I was 27 when I did my "champagne backpacking". I was no starry-eyed 18 year old, although of course my eyes are considerably less starry

That is a factor, but I was 27 when I did my "champagne backpacking". I was no starry-eyed 18 year old, although of course my eyes are considerably less starry now at 42 than they were at 27...