My husband and I are trying to take our daughter (10) to universal and disney world this year. We can either go in July or the second week of December. I'd rather go in December when it's not so hot, but I'm worried with covid happening that her school won't allow vacations (they didn't allow any this year). I need some opinions about whether to book when it's hot in July and we know that we can go or book for December and risk being forced to cancel. Thank you!