6 year old wants to ride bikes with friends, am I being a helicopter mom?

I was curious if I am being over protective about my son. He only turned 6 in March, and has recently been asking to ride his bike around the block and throughout the neighborhood with friends around his age. Right now he is allowed to the end of our street so I can keep an eye on him, but is 6 old enough to let him have more freedom? via /r/Parenting http://bit.ly/2KeYqsY