My 16 year old home-schooled daughter wakes up at noon... By the way, where I went to school we had 7am (!!!) classes ... I used to sleep in and just skip them as a teen ;)
My personal schedule as an adult is to start working around 10am. Oddly enough when I am on vacation I tend to trend towards getting up earlier. If I need to get to work early for a meeting e.g. I tend to feel very tired the entire day.
I think some lot of this is related to how our sleep patterns are screwed up by artificial lighting. When we go camping we generally don't have fires and we go to sleep when the sun sets down and get up when it comes up. It all feels very natural after you've done a few days of that...
Try camping one full year in Ireland (beautiful country) and see how natural it feels to sleep 7 hrs in summer and 17 hrs in winter. And Ireland isn't even that far north.
My personal schedule as an adult is to start working around 10am. Oddly enough when I am on vacation I tend to trend towards getting up earlier. If I need to get to work early for a meeting e.g. I tend to feel very tired the entire day.
I think some lot of this is related to how our sleep patterns are screwed up by artificial lighting. When we go camping we generally don't have fires and we go to sleep when the sun sets down and get up when it comes up. It all feels very natural after you've done a few days of that...