When it comes to the DGC, DS/DDiL are bosses. Right now, the oldest is in Kindergarten.
As a parent, I never took our DS's out and part of that was because I was teaching. Our DS's went to different schools, one was private, one was public...I taught in a different public school at that time. I teach college now, p/t, and it is very very hard for a student to catch up after missing even 1 day out of 20, if it's one night out of 10...it's almost impossible. It's just what happens. Many people have difficulty with mathematics.
I arrange for student project or a sub for my classes, which is why I'm not taking the whole week off before the cruise. This means the family has the whole 2 bedroom BCV without DH and me, we will have a studio for the 2 nights before the cruise. I always said that I would not do that, go in a studio and give them the 2 bedroom, but there it is....I just don't have the heart to bump DS/DDiL out of the king bed.
I have mellowed over the years...but you know, I never cut/missed a college class in undergraduate/graduate school (this was in the '60s 70's). I just wanted to be there and think that it's important. Others have a different view of things.
Bobbi