It would be advantageous to have Actions on Components. At the very least an OnSelect action. At the best, the ability to create custom actions in your component.
A common example is the "menu" component - the ability to raise an Action when a menu item is selected to be acted upon in the App would be helpful.
Current workaround - use a Toggle and create formulas based on conditions around the component. Although this adds more dependency in the hosting app - which is what the component was intended to remove.