Why?

Why can't we believe, love and dream like a child?
Why can't we be true to ourselves?
Why do we have to grow up to be what people want us to be?
Why do we have to grow up in the first place?

The best of innovation,ideas,inventions,emotions,art,harmony,peace and joy can only be conceived in a child-like mind?

Then why all the mad rush to grow up and be what you are not?