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 can you fold but not crease?
What is neither inside the house nor outside the house but a necessity for any home?
What I am filled, I can point the way. When I am empty. Nothing moves me. I have two skins. One without and one within.
At first I am a yellow weed in the lawn, and then the wind blows, and my white feathers are gone. What am I?
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.