Why do you think middle class suburban teenagers work awful jobs with no chance of career growth (Walmart, McDonald's, etc)? Most of them have parents providing

Why do you think middle class suburban teenagers work awful jobs with no chance of career growth (Walmart, McDonald's, etc)? Most of them have parents providing for necessities. It's because people always want more. Even the poorest people today live like kings compared to five centuries ago, but people still strive for more despite this relative prosperity!