I would change walking. Now that I am always in a chair I can no longer visit friends, I cannot walk up steps to their front door. I cannot walk upstairs to my children’s rooms. I cannot visit shops/museums/parks because I need assistance in the bathroom and most public restrooms are gender specific. Although that is getting better. I can’t walk thru my yard or pull weeds. When I was imbalanced I could hold a stair rail/arm/bar and navigate uneven terrain. Even though I am always tired I think I could deal with that. Not being able to walk means not being able to do much. Unless I spend lots of money on adaptive devices.