A level Product design help

Hey, I'm Jacob and I am starting my A-Levels in September where I am doing product design, where we make a product after designing it to help with a certain context, and I want to do it about physical disabilities if you wouldn't mind answering a few questions.
What do you most struggle within an office environment in terms of moving around or working in general?
If you could have anything on a desk to help you throughout the day, for example, a wide desk to fit wheelchairs under it or something like it.

Thanks in advance, it would mean a lot to me if you could help me out!
Feel free to ask any questions to me in terms of my reasonings or anything like it.
Thanks again, Jacob.