SCA? Knitting circle? Genealogy? Gardening? Roman history? Ships in bottles? WWII? Model trains?

[resolute]

At some point in one's middle age, one looks up to realize that the List Of Appropriate Middle-Age Interests and Hobbies has come to loom before one, like the cover art of a Tingler (by Chuck Tingle) and that one has no choice but to make a selection.