Hearing aids and cochlear implants are very effective in small, quiet spaces. In public venues, they can be counter-productive because they amplify all sounds and that leads to distortion and interference with understanding language.
Hearing loss is invisible and most students prefer to keep it that way. Not paying attention to their need for accessibility, by way of assistive listening technology, lowers their chance for success — academically, socially and emotionally.
The joy of learning often extends well beyond a classroom setting, often to museums and here again, being able to hear and understand language is critical.