Needed a wheelchair on some days since my early 30s, and the experience has been eye opening. Some spaces seem well designed such as airports, but others it feels like disabled people are a complete after thought. Even in new places that have just been built in the past few years. You can understand in historic towns and places, but if some where has been designed and built in the 21st century, you'd think that they'd put a button to open the disabled toilet door.
The people who design and run these places need to spend a day getting around in a wheelchair. Design it with wheelchairs in mind first, and everyone else will be alright. Who doesn't like a ramp and automatic doors any way?