Having made a slightly unhelpful comment above about flying, I feel I should also add something constructive to this thread.
I’ve been on the other side of this as a safety supervisor and coach for a cadet with Hearing Assistive Technology (I think a cochlear implant, IIRC, but it may have been another variety of implanted aid) a couple of years back. The cadet relied a lot on lip-reading, IIRC, alongside the assistive technology he had.
As a range team, we’d discussed the cadet specifically before allowing them to shoot (L144, indoor 25m range, FWIW) to decide on reasonable adjustments. One of these was 1:1 supervision (me).
We spoke with the cadet and found that his tech would filter out loud noises - they were confident that noises from shooting would have triggered this, so there would be no damage to either the tech or them.
By policy, though, the cadet must wear issued, serviceable hearing protection, so we’d agreed as a range team that they would do so. IIRC, the RCO or SPO (I forget which) also consulted the TSA who agreed on this approach, but I may be wrong.
The cadet could hear very little while wearing ear defenders. I needed to relay all of the RCOs instructions. It would have been safer IMHO to have not used them, as the cadet would have been able to hear better with little to no risk of NIHL. Providing coaching was also a challenge.
However, we adapt and overcome.
Instead of positioning myself in the “correct” position on the right-hand side and “one position above” the firer, I moved to the left and adopted the same position so that they could somewhat see my mouth without fully breaking their position. I was also confident that I could relay a STOP command efficiently in the case of an emergency. (If I wasn’t, I would have stopped the practice myself so we could re-evaluate.)
In 7 years as a safety supervisor/RCO, I have seen far more dangerous situations due to errors of drill, poor “corrected” vision (usually followed by a polite suggestion to revisit an optician), and poor marksmanship skills.
While there was definitely more risk in this case than usual, the risk was managed, and we found reasonable adjustments to allow the cadet to participate. If I were to do it again, I’d probably suggest reducing the number of active lanes, but otherwise I’d be happy to supervise cadets with similar disabilities again indoors. I’m not sure I’d be comfortable on a 12-lane outdoor range battling against wind noise, though, so there needs to be a degree of judgment by range staff.