Tomorrow is a funny word. Not that it makes me laugh. It just feels more preferred, to think of the potential unheard.
Tomorrow should be used when we go to sleep. At the end of the night when it's time to count sheep. But that's not what people use it for, the literal expression is such a bore.
When we say tomorrow, it creates a strong of sense of hope. When we say tomorrow, it gives more time to tell our problems, "Nope."
Nobody wants to say tomorrow and feel something negative. It is such a dreadful thought that we demand an alternative.
But what if tomorrow is going to ****? What if? ... and there you go. That's why tomorrow is a funny word.