How come people are confused I asked user is the day 05/05/05 or 05/05/05 or 05/05/05? [closed]

I just don't know why can't they answer a simple question, which date format are they using: 05/05/05 or 05/05/05 or 05/05/05, why can't they answer it? Here's what I mean, why can't they answer this, and how would I improve this, what I even do that confuses the user when I create a UI about date format they're using: