So I guess the question is - should disabled people be able to use these devices on the sidewalks (with appropriate license/plate)? And should non-disabled folk

So I guess the question is - should disabled people be able to use these devices on the sidewalks (with appropriate license/plate)? And should non-disabled folks be able to use them in bike lanes? Etc? Honest question, I have never ridden a Segway but want to try it.