Answer:
A natural tattoo on babies
What can get you there in eco style, pushed by your legs mile after mile?
What can hold a car but can’t lift a feather?
The buyer doesn’t want it, the producer doesn’t need it and the user doesn’t know their using it.
It's tough as nails, Or soft as snow. People use it for their rink, Some just put in their drink.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?