Answer:
A mile from end to end, yet as close to as a friend. A precious commodity, freely given. Seen on the dead and on the living. Found on the rich, poor, short and tall, but shared among children most of all.
What has a spot and is very bright, is sometimes, red, white, blue, yellow or green and is often blinding.
He has married many women but has never married.
What flies around all day but never goes anywhere?
I'm not really more than holes tied to more holes. I'm strong as good steel, though not as stiff as a pole.
People take me on walks and I run and have fun. What am I?