What I Learned From the Astro Access Experimental Flights?

The astronauts were testing out a lot of different things, including specially modified flight suits and special lighting systems for deaf people. And i think one of the biggest takeaway s was that they don't nean that much. A lot ofthe things they were testing were actually pretty simple modifications you added them in. Now, would it not be that difficult to add in and enable a lot of peoples disabilities to be able to do this safely?