Getting a wheelchair fitted to each individual body is much like getting a pair of shoes fitted. There is no one-size-fits-all.
It is very similar to the fitment of wheelchairs, with an ill-fitting chair causing ongoing health issues, such as repetitive strain injury, premature shoulder wear or body pressure sores.
See the Australian manufacturing solution here https://www.amgc.org.au/project/3d-printed-metal-carbon-fibre-customised-wheelchair/