Activating submenus on click rather than on hover often provides a more user-friendly experience. Hover can be problematic, especially since it isn't accessible on touchscreens and can be challenging for keyboard-only users. Providing a click option ensures that everyone can access the menu content reliably.

Click activation also reduces the frustration of accidentally triggering menus, a common issue with hover where menus can appear and disappear too quickly if the mouse passes over them inadvertently. This click method creates a consistent interaction across various devices, from desktops with mice to touch-only smartphones and tablets, ensuring all users have the same functional access.