Hello all! So this is a bit of a new thing for our family, which is comprised of five adults (3 late-20s, and 2 early 50s) that has been going to Disney for a few years now (DVC and APs as of last year). We will be taking my cousin's youngest daughter on our upcoming trip in December! She is 4 years old, so we can figure out what we can do as far as FP's (60 day mark is in 2 weeks), ADRs, room, bus. We're looking at a few different places for scooter/stroller rentals for her and my dad. Is there anything else I may be missing? Transportation is where we're stumped on. We'll be flying Southwest from PIT to MCO, and we're purchasing her tickets soon. Will she need ID or something to get through TSA? None of us have Pre-Check. And will she need a booster seat for the plane? I'm trying to find this stuff, but google isn't helpful in that regards. Is there anything else I need to keep in mind for her?