Why is Music always telling me not to do things?

I'm not a child, music. I can do whatever I want.
  1. Don't go chasing waterfalls.
    I wasn't going to?? Was this a big problem at some point? People just quiting their jobs and leaving their families behind?
  2. Don't stop believing.
    In what? Santa? It's Santa, isn't it?
  3. Don't you forget about me.
    How could I? You're unforgettable.
  4. Don't bring me down.
    I won't, Electric Light Orchestra.
  5. Don't speak.
    I know just what you're thinkin. You think this list is cheesy. No doubt.