> I had to wear those in nuclear environments and they limit vision significantly and beep constantly if you bend over and choke the hose at all.

These current-day issues and other considerations like them appear, at least to my layman's eye, to be solvable problems.

Now, whether or not they are morally/economically feasible, trivial vs. non-trivial to introduce solutions for, and if they align with both the users' and the companies' producing the units needs are the major challenges.