Would you rather have your life handed to you on a silver platter or fight your way to the top? Many success stories only became success stories because of strong ambition and perseverance. For instance, Barack Obama struck politics out of poverty. Now, he is a success story. However, most people I know would want life given to them. Unfortunately underneath the obesity issue, America is a dog-eat-dog world and if you aren't fighting, then you're getting eaten.
Picture this scenario: You grow up in a wealthy family. A lot is expected of you as a child, but you get by. Your family makes sure that you receive the best education possible. Once you are independent, your parents still pay for you partially and support you financially because they have enough money to do so. Do you think that is the best way to live? Never really having to work for yourself or even fully support yourself. What if your parents went bankrupt? You lose their financial support and, say, you lose your job. You would have no experience in fighting your way back up because everything has been given to you. Basically you'd be screwed.
As stated earlier, America is a dog-eat-dog world. We will do anything we can to survive. Life is a continuous game of predator vs. prey. As the predator gets faster, the prey must also get faster in order to stay alive, and if the prey gets faster, the predator must also get faster in order to eat. However, if your life is handed to you, you don't know how to play the game. And if you don't know how to not get eaten in a hungry world, you will just get swallowed up.