Colleen,
My husband and I did this same cruise this past New Years, and our family were none too happy about us not being home for the holidays, our daughter is 40 and our son is 36.....But they managed to survive, and we had a wonderful time. Totally a non -stress season for us.
We will be with our kids and grandkids this year, but not for Thanksgiving....... :) :) :) Guess Mom and Dad are slowly leaving the nest. Have a great trip, I know you will. Sandy