My daughter, who is 11, sings a number of sea chanties, both in private and in public. We always talk about whether the songs are "suitable for children" and she keeps the more risque ones to herself. At a recent young people's workshop/concert she taught her group members a version of "Away Rio" that went over well.

One of my sons, when he was very small, observed that "you can't say shockin' language, not allowed to say shockin' language, but it's okay to sing shockin' language songs".....