Which is already happening. The hardware in an Airpod is effectively the same as that in a hearing aid. Wearing an Airpod isn't a sign of a disability, with all the stigma that comes attached to that.
Something like these earrings blur the line even more between hearing aid and headphone. You could actually imagine wearing it all the time (including during conversations) without appearing rude - a big problem with just wearing earbuds.
The only thing missing is the software to do local DSP and amplification. It's almost certainly possible - bluetooth headphones have all the required components - but the manufacturers aren't writing the software to amplify ambient noise directly. Either because they don't believe the market is there or because they don't want to venture into the "medical devices" category that hearing aids land in, with all the added R&D expense that entails.