Making a Case for the Desktop Hamburger Menu - Usability Geek

And to make matters worse, consider this statistic: Only 52% of users over the age of 45 even know what the hamburger icon means

Not only does hiding a menu create an extra click, but it creates it over and over again. Every time somebody wants to go to another page, they must go through the repetitive action of clicking the icon just for the privilege of seeing the menu