Do you get why people build model trains or play golf or go skydiving? None of these are very productive uses of your life, but people do them because they are

Do you get why people build model trains or play golf or go skydiving? None of these are very productive uses of your life, but people do them because they are enjoyable (to them — if you stuck me on a golf course, I would definitely not feel like I was doing something enjoyable).