Answer:
Fashions change, but what can a person wear that is never out of style?
I am a shimmering field that reaches far. Yet I have no tracks and am crossed without paths.
In prison I'll be found. But I would never go to court Unless there's more than one
I belong to you but others use me more often than you do. What am I?
I am constantly overlooked by everyone but everyone has me. What am I?
No matter how little or how much you use me, you change me every month.