Answer:
What has no beginning, end, or middle?
Everyone has me except for a few. You may not be able to identify me but I can always identify you. What am I?
I can make arrows fly. I can make kites soar. What am I?
I'm tall when I'm young and short when I'm old. What am I?
I am bought by the yard but worn by the foot
No matter how little or how much you use me, you change me every month.