There are a few exceptions. If you hike and camp in the woods, you will want to have a backpack to wear. A lot of people love to volunteer their time fro free when they are not working for a living. I had a streak of 13 years attending SxSW (South by Southwest) music festival in Austin, Texas, in addition to attending hundreds of other live music concerts. Well into my 50's. The main reason I mostly stopped was to save money to buy and maintain a second home. I still listen to music every day. I am working on a list of my top 2000 songs. I already made a list of my favorite 200 artists, over 90% of them unknown to people who did not have a passion for cutting edge music from 1985 to 2010.