Recreation and Leisure

I still can't figure out why Recreation and leisure are considered top level knowledge. I can say the brain was interesting, but I don't think I want to do a lot of reading. Although, I'm expert at pets, fine art, nature hiking (when I could) collecting some things, so I'm not averse to all these things, I kind of wish there was a topic on recreation and leisure, I can't even sort out the difference between the two words, but I can live without it. Next brain is on society, I have been spending quite a bit of time there, so I'll decide later which topics I'll bounce around with. Education is very good, I think I'll think about that next week.