Answer:
I am rubber you can eat!
I have been the beginning of ideas for all time yet I am just one simple small object the things that you can use me for can be frustrating and also I can be pretty. I have some of the most valuable thing in the world on me yet almost everyone owns me.
When young I am sweet in the sun. When middle-aged I make you gay. When old I am valued more than ever.
I make a living following the wealthy and beautiful.
I am the second L in LOL.
What did the grape do when he got stepped on?