I believe it could be sailed single handed, but probably not sailed well. If you want a performance boat and are willing to find 3 friends to sail it well, get it. You can always sail it solo with just the main, and that would be easy. Jib would add to the work and probably result in being overpowered in any kind of wind. Spinnaker should probably be left in the bag.
I used to have a Rocket 22, and would sail it with my then young kids, so essentially single handed. Up to 15, main and jib. More than 15, just main. Spinnaker when I had 3 or 4 crew.
Those kind of boats can be a lot of fun, but you better know what you're getting into. And, you should learn how they handle differently than a traditional keeled boat. You have to keep them going or that fin will stall like there's no tomorrow.
By the way, I'm 60 and can still sail a sport boat well, so rubbish on the "61 year old nerves" comment.