Why are drop down menus useful?
The use case for drop-down menus
Offering drop-down menus can help users avoid scrolling and can quickly get them access to your site's content. For large websites, drop-down menus can save users time by allowing them to jump down a level or two to get to the content they seek.
Are drop down menus accessible?
Why are Drop Down Menus not accessible? Drop Down Menus, or “Fly-Out Menus” as WCAG refers to them, can be difficult or downright impossible for users with mobility impairments to navigate. Many users with reduced dexterity do not have the ability to use a mouse and rely on keyboard commands to navigate a web page.