Answer:
A young man wants to have me but when he has me, he no longer wants me. What am I?
You seek me out when your hunger's ripe. I sit on four legs and smoke a pipe.
You went into the woods and got me. You sat down to seek me. You brought me home with yourself because you couldn't find me. What am I?
I can generate fear and some say I come out of your ears. I am as quiet as a mouse but not welcomed in the house.
I've been around for millions of years, but I am no more than a month old. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.