“You have to come,” Paige said to me, “this aerobics class is a unique Cayman experience.  I can’t let you miss it.” I reiterated that I didn’t like workout classes.  “I already have enough people demanding things of me,” I always say when people encourage me to sign up for something like Orange Theory or Soul Cycle.  “Well this is more like a fast pass to Carnival,” she said, “and it’s time to go.” I went to the reggae aerobics class.  I was her guest for the week, and this was something she really wanted me to do.  The class was packed and had just started when we arrived.  The…