I have a hearing aid in my right ear only. After I became deaf at the age of 2, it took a bit of time before I finally had hearing aids. My parents just wanted for me to be able to hear, so they did everything they could to help me. Not only to hear, but to communicate too.
I quit wearing the left hearing aid in 4th grade as I have never heard a single sound in the left ear, and hearing aid in left was useless. But continued to wear one in the right, even today. It's just "normal" for me to wear a hearing aid, to hear what is going on around me (even though I don't always understand what is going on).