MIC HAS AN ARTICLE REMINDING US THAT Everyone Can Sing. ”
Using three age groups — kindergarteners, sixth graders and college-aged adults — researchers asked each person to listen to a pitch and then sing it back. Researchers noticed a significant increase in accuracy from kindergarteners to sixth graders, likely because most kids that age have regular musical training at school.
Surprisingly, the adults performed at a level closer to the kindergarteners than the sixth graders; researchers now think that’s because singing has a “use it or lose it” quality to it. It’s like a muscle. And all that off-pitch singing only helps strengthen it.
More background on this topic here.