And spina bifida, and cerebral palsy, and strokes, and diabetes, and broken bones, and arthritis, and being pregnant, and just getting old, and literally hundre

And spina bifida, and cerebral palsy, and strokes, and diabetes, and broken bones, and arthritis, and being pregnant, and just getting old, and literally hundreds of other disorders that cause temporary or permanent impairment. By the time you're finished fixing the reasons people encounter mobility issues, we'll be darn near immortal - and you still won't have magicked away the reasons that able-bodied people benefit from universal design.