It's interesting that there are so many comments about how uncomfortable people get around it due to not knowing if they are being filmed/recorded... why didn't

It's interesting that there are so many comments about how uncomfortable people get around it due to not knowing if they are being filmed/recorded... why didn't Google simply cater for that by adding a small, hardware-controlled red "recording" LED indicator to it? I think it would work wonders to the rejection around Glass.