Don’t people who retire trade their work routine for a non-work routine?

I have noticed that at the coffee house I frequent (which will remain nameless), when I go in the morning I always see the same people. By age or confession, they are retired. It is like by their conversation and action they have a routine they have adapted, stopping at the coffee house every morning for a few hours to meet their other retired buddies is part of it. When people retire don’t they go climb some mountains, travel, and all the other junk you were supposed to get ready for when you retire, or do they just get in a rut doing a non-work routine?