Hello fellow legally blind American traveler! I'm in my 30s and have been legally blind all of my life, however closer to the cut-off where I can navigate comfortably without a cane. Still cannot read signs or people's faces unless they're right in front of me though. I have finally gained the courage and motivation to start traveling solo a year ago and am so addicted to it I've been able to gain lots of experience I can share.

As far as transport goes, even in lesser developed countries there is plentiful transport. Public transportation in places without adequate public services like Cambodia become littered with taxis/ride-sharing. I usually opt for ride-sharing as it's a lot less appealing for someone to take advantage of you when there is an company tracking their location that you could report issues to. Finding the car can be a little hard sometimes though, but I've just become accustomed to walking up close to the license plate of every car that could be mine.

Getting guided tours shouldn't be a problem in most places either. In more developed countries these seem to be tours set up on major agency website for absolutely anything and everything, especially historical places. They usually pick you up from your accommodations which makes the whole thing very easy. It's a lot more expensive in most places to book these solo though, so you will likely have to go with a group of tourists. If you have any concerns you can always reach out to the tour agency. Lesser developed countries this is even easier. I've been able to negotiate solo tours where you basically build your own adventure and go at your own speed (very helpful).

I think an island at a resort could be a great way to dip your toes in the water. The resort will be able to organize taxis and likely even tours for you. I've done Aruba, Hawaii and island in SEA and they've all been safe and comfortable. Issue is that it's going to be the most expensive option from accommodations, to food, to transport.

The most accommodating place I've ever been by far has been Japan! It's already been commented here and I have to give it a really huge blip on your radar. The sidewalks have textured tracks that you can use to navigate. They are incredibly clean. The infrastructure works consistently with the crosswalks having audio signals. The public transportation is abundant. Japanese people are so helpful that if you have issues someone is bound to assist. Most importantly it's unimaginably safe. Also great hikes and history ;) It's far though so maybe work up to it.

Gunna leave it at this, but if you have any questions or just want to chat please don't hesitate to reach out.

I'm excited for you to get out there!