This thread really had me scared! When I booked my cruise last February for this coming February my son was at a different school where the principal had stated they were in favor of families taking vacations together, even if it meant taking them out of school. So I thought great, and booked it.
Then, due to a new school being built, my son changed schools, I didn't even think to ask the new principal about it. I did talk to his teacher at the beginning of the year and she said fine, just let her know a few weeks in advance. (he's in first grade). So, when I sent the note into school yesterday to his teacher, she replied that I also had to let the office know. That is when I got scared, we are only 4 weeks away, what if I had a problem.
I went into the office this morning, and talked to the secretary, all she did was write it down, and said have a great time! No questions about why we are doing it or where we are going, I just said family vacation.
I guess every school is different, but I am sure glad I have a school that is in favor of families taking vacations together, even if it is during school.