I was at a doctors surgery and noticed the bulk of the walking frame of one of the elderly patrons, and the difficulty navigating around with it. Can we make a single pole with a single wheel at the bottom, that does it’s darndest to stay upright when you lean on it. Perhaps it has to be two wheels, similar to a segway, but the point is that we’re trying to use technology to make the walking frame less bulky.
In saying this, there are two additional benefits of walking frames: One, the elderly can sitdown anywhere they like. Two, they can sit down in a waiting room and put their Sudoku on the seat of the frame.