I don't want to discourage the poster asking if she would be separated from her children, but we just flew to Orlando last week and signed on at 24 hrs. We got B3. The family boarding was 25 deep. We got on at B3,4,5 and could not sit together. Now I will say there definitely was grandparents, uncles and such boarding with families and the agent should not have allowed that. I was ticked. So I learned my lesson that if I want to be guaranteed a seat with three in a row I better pay for the Early bird. It will be 60 well spent. Orlando generally has large family boardings between the A and B section. Just my recent experience to share.