Answer:
I am one small little piece of paper yet sometimes hold lots of value. I am all you need to get in to big events but will cost you. I am an important part of travel. And if lost you're not coming.
Blade to blade I always win My foe laid low and even. Yard by yard through thick and thin I'm busiest in season.
I'm an old relative who's hand's can't hold anything and eyes can’t see anything
What is black when you buy it, red when you use it, and gray when you throw it away?
When I come in from sea to shore twenty paces you'll see No less no more.
No matter how little or how much you use me, you change me every month.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic