We didn’t take our first family trip to WDW until our youngest was about 2 months shy of 7 years old, so we didn’t need car seats or strollers.
When our 3 kiddos were younger (again, only about 3 years and 2 months apart in age) we made a lot of visits to Sea World San Antonio, the San Antonio Zoo, etc. We had a larger stroller that could fit 2 and always had an umbrella stroller.
When Megan, Daniel, Emmy, and I did our fly in in the mornin’, fly out in the evenin’, one day WDW MK “Worldwind” trip on Oct. 29th of ‘19, they had a stroller/car seat combo thing. With JetBlue, you left your stroller at the end of the jetway, just before you boarded the plane, and they stored it. At the end of our flights, it was waiting in the same place for us to claim.
We did Lyft or Uber (can’t remember which
) to and from the airport, and you just simply detached the car seat from the stroller chassis...such a cool thing...!!!