we took my DD out of school 4 times, in kindergarten through 4th grade to go to wdw and it was never a problem. she did the work she would be missing before our trip, and her teachers were fine with it. she started middle school last year and they do NOT excuse students for vacations, so we're stuck with school breaks and summer. however, even if DD were excused for it, i don't think i'd do it now that she's in 6th grade. classes have become more difficult and her straight A's from elementary school are now A's & B's, and she struggles to get those-she wouldn't have to struggle if she'd study, but she doesn't see it as necessary. in elementary school, i think it's fine, but once they reach middle and high school, it really depends on the child.