What's wrong with the world... No one says what they really

What's wrong with the world...

No one says what they really feel,
they always hold it inside.
They're sad, but they don't cry.
They're happy, but they don't dance or sing.
They're angry, but they don't scream.
Because if they do, they feel ashamed.
And that's the worst feeling in the world.
So everyone walks with their heads down
& no one sees how beautiful the sky is.