so ds is turning 3 halfway though our 3 week trip. I am buying 14 day flex tickets for Disney and Universal for the family (adults and older kids) - do I need to buy him a pass? do they check age at the gates?
For Disney it's the age when you first use the tickets so if you buy the 14 day flexi pass just make sure you first use it before his birthday.
They sometimes do spot checks- most likely to ask your son not you! It doesn't happen often but if it does just explain that he turned 3 during the trip and you'll be fine. You could always carry a photocopy copy of his passport (I think you're supposed to anyway in FL but we never bother!)
Sorry I have no idea as to how strict Seaworld are!
Yes, sorry! I started to type, had one child come in to ask about homework, went back to typing, had another child come in and completely forgot what I was trying to say!
Yes, activate your tickets before the birthday and then in the unlikely event that you are questioned after the birthday just tell them. It's extremely unlikely that they'll check the tickets (or even question you) because they mostly operate on a trust system, but it keeps you covered just in case.
I bought my DS a ticket as he was nearly 4 when we went to Disney...it was never used, he was in a buggy so the staff just opened the gate for me and only scanned my ticket. I was never asked once for his ticket, even when he was out of the buggy at Disney Quest. So I sold it on eBay when I came home.