Thanks for the reply. We positively would be going with her, but are struggling with where we could go that both has scooter rental easy to find and also is easily accessible. I've traveled around the globe and offhand can only think of a few places that might apply. I'm hoping that Disney and Hawaii aren't the only two options for us outside of the continental US! I'd like for her to be able to get around on her own because we'd like a day or two (or three) to see more than is limited by her scooter. For instance if we did Hawaii, I'd like to take my kids snorkeling for a day, and want her to be able to explore a little on her own without sitting alone in a hotel room waiting for us to come back.

It's outside my experience, because I walk with a rollator.

You may have to select places you'd like to visit, then ask on the destination forum for advice, because this forum covers the whole world, there are lots of places none of us here know.

I find Singapore is good. No knowledge about hiring mobility scooters, but everything has been planned with the disabled in mind. There are elevators in almost all locations where there are steps, and plenty of ramps to make road crossing easy. But not good for snorkelling, the water is murky.

I’ve travelled throughout Europe with my mobility scooter. Airlines accept them, but there ar3 size restrictions if it’s one of the very big ones.

You need to book airport assistance with the airline. I do this at the same time as I book my flight. I scoot to the aircraft door and it’s waiting for me at my destination. All very easy. My scooter has a dry cell battery, so remains on my scooter. Lithium batteries need to be taken into the aircraft cabin.

Some places are very good for accessibility likeUK, Ireland, Spain France and other countries depend where you go.

If you are on Facebook, there ar3 some very good Facebook pages for those travelling with disabilities.

There are definitely motorized mobility aids that can be taken on an airplane. You just have to make sure that the batteries adhere to TSA or relevant aviation authorities' requirements. You can look here: https://www.transportation.gov/individuals/aviation-consumer-protection/wheelchairs-and-other-assistive-devices#:~:text=of%20the%20aircraft%3F-,No.,cargo%20portion%20of%20the%20aircraft.

There are also companies like https://us.travelbuggy.com/ that specialize in wheelchairs that are airline-approved. Worth taking a look at!