My son is 17 and has been with the girl for 5 years. And well they will both be attending the same college next year and her family is going on a cruise come Spring break and they want my son to go along they are going to pay for it and her parents will be in a room with my son and his gf in another. I am hesitant to let him go but at the same time my husband thinks i should because if he hasn't had sex with her yet then he is probably waiting anyways and he knows everything about safe sex because my husband and i have both given him talks. Just unsure. Would you let him go? Should i? Advice?