My fam took my niece for her first trip at 7 months, my nephew at 4 months for his first trip, and we will be taking my newest niece for her first trip in a month and she will be 10 months. I will say they are super easy at these ages. I agree on the baby carrier -- we didn't have one, but each time have had 5 adults to swap out the babies. I have to say we have plenty of pictures of sleeping babies in strollers, on shoulders, and laying in booths at restaurants; we never really took them back to the hotel for naps. We used rider swap when needed. My sister had everything delivered (food, formula, etc) from diapers.com and that made things a breeze. May or may not have changed a diaper while in line for PoC and GMR (whoops). Do what you have to do. You know your baby best! Also, due to a mishap, we've used Kingdom Strollers and they were amazing as well. Honestly they're much more difficult when they're 3, able to walk and talk, and able to throw a bigger fit if something doesn't go their way. I think you'll be just fine! Good luck!