I used to like the outdoors as a kid, because I’d have fun and had a reason to go outside. I used to play basketball, soccer, volleyball, etc. outdoors. Also used to explore and discover things and free run.
As I got older, I have hated being outside more and more. I still LIKE being outside, but only if I have a reason to. Like, going swimming or mowing or something that has some sort of destination/result attached. Otherwise, I stick indoors.