Why do we have doors?

Question

I don’t know why we have doors like wattttttt

Answer 1

For privacy!! Imagine going to the bathroom without a door on the stall... 

Comments

I wouldn’t even go to the bathroom…

Or I would just hide behind a bush and do my business there.

Answer 2

There’s doors for many reasons, like blocking off heat or wind.

Comments

And also from rain and insects falling and crawling in your house