I've never been on a cruise myself, but is it anything like "Spring Break Action"? How do you ever face your teammates after this? His parents must have made him go. Either that or he has a girlfriend, who looks like Beyonce, that made him.
I missed my prom to go to state my senior year and it wasnt even a consideration because that state appearance has been on my resume ever since. Still as a HS kid you dont think about stuff like that. I used it in my very first job interview to talk about how I made tough decisions and stuck with them.