It’s strategy stolen from ostriches, which supposedly nudge their noggins into the ground to avoid danger. When people would rather not face a threatening situation or awful reality, they’re said to have their heads in the sand. The expression has just one problem (well, two problems if you consider it unhealthy to hide from reality): It’s based on a myth. Ostriches don’t really stick their heads in the sand. They do drop down and press their necks against the ground to hide from threats, but they keep their heads out so they can see what’s going on.
Picture Credit : Google