I'm not sure why I'm participating in this thread. But I am, and it's not about semantics. At least the reply below is on topic, I hope....

Commuting really implies regularity -- and is understood by most to entail a destination of work or, for some, study. I ride into chruch for evening deacon's meetings and choir rehearsal, but drive my boys in on Suday morning. (it's 7.4 miles away)

I think this kind of regular weekly ride to a civic or religious responsibility could also be considered commuting. Errands and shopping fit well under utility cycling, so why call them commuting?