I do know of people that really like working. My father already retired and was playing golf for 3 times a week, but he still went back to work when he got offered to do a project. I am the opposite, I wanted to get out of the rat race as soon as possible. I have a lot of things I want to do from reading books, to watching movies/series, to playing video games, travelling, etc. I don't understand those people that say they will get bored once they retire.