Does everything have to be a metaphor??

Yes.
Everything does have to be a metaphor.
Even your post is a metaphor.
And so is mine.

Not only have I metaphor, I slept with her too!

Your mom is a metawhore

You should be thankful.

Movies used to be fill with "Metaphor", right now? Movies are fill with "Easter Egg".

I rather have metaphor than easter egg.

No. Sometimes it’s a simile.

Compare and contrast.