Vicki and school
Since Vicki was a school girl during the majority of the series, she must have been home schooled. Was it ever addressed who took on this responsibility? The captain, her father, seemed to be too busy running the ship and having affairs with women at every port to do this. In fact, Vicki was the result of one of those affairs, who knows how many other "Vickis" there were "floating around" out there (no pun intended), but that's another story.
There was one episode where Julie and Vicki were working on homework together. Maybe Julie took on the role of teacher as well as cruise director?
I remember when the captain was first going to take custody of Vicki, a social worker took a cruise to assess whether or not this would be an appropriate environment for her.
I agree with her assessment that Vicki was not able to form lasting friendships with kids her own age. That can be more of a challenge for any kid who is home schooled, but much more so when they spend their teenage years on a ship.
I am close to the same age as Jill Whelan and she was one of my favorite actresses growing up, I would have loved to have a friend like her. I felt bad for her character though, I think she missed out on a lot.