My friend and I were just talking bout this and how interests have changed over the years. We as well used to go to alot of football games. Now, no desire to. Don't really watch football anymore. Never really did watch it on TV, just enjoyed atmosphere of being there. But now, we have no desire to waste a good part of a day at a game.
We also used to shop alot, in stores, for fun. Now going to a store is a chore. Much easier to shop online. And, I have realized we don't spend as much as we don't just browse, we know we need x and go online find it and buy it. Where when we'd shop for fun we'd browse and pick up stuff that we thought we needed.
About 9 years ago we really got into the outdoors and now that activity has stuck for 9 years. Hike, bike, run, kayak, SUP, etc.