As somebody who had been outside all the time during childhood and hated exercise starting with the PE in school, I don't think your guess is well founded in re

As somebody who had been outside all the time during childhood and hated exercise starting with the PE in school, I don't think your guess is well founded in reality. None of my childhood friends had been keen on exercise either and PE was not the most popular class in my school... For me there is a huge difference of doing something that requires physical exertion in order to complete and doing pointless physical exertion for exertion's sake. I can skate on a board or skates, or ride a bike for hours because it's about skill and technique for me, I feel frustrated after running for a minute. Similarly I can free-dive whole day but swimming laps feels like a massive chore. I believe some people can enjoy exercise but, judging by how many fit people are there - they are in small minority.