My son is 11. I guess my fears stem mostly from my son. He has a medical condition so I have a lot of things that I have to remember to bring and to bring backup of certain things. I have this fear that we get out to sea and then I remember something that I forgot to bring. Or him falling off the edge into the water. I know, I know, I'm paranoid.
Then of course there are those irrational fears of travel in general. I have not traveled in my life any way other than by car so this is all new to me. I guess what I really need to do is just get on the ship and then after I realize I remembered the important stuff and I feel safe, I'll calm down and enjoy myself.