Assume I have a primary view (View1), which has two subviews (View2, View3). Both View2 and View3 have tappable areas on them. Should View2 and View3 handle the tap actions themselves, or should they "communicate" the tap has occurred and let View1 handle it?

I think it boils down to whether the tap is an action that needs to be performed, e.g. a delete action, or if the tap is just to signify that a tap occurred, but that the action should be left up to the containing view. For example, if View2 was a calendar, then tapping on a day could initiate any number of actions so should propogate that tap to the containing view. If View3 displays calendar events, then a tap action to delete an event should probably be handled in View3 itself.

Does that sound like a sensible approach?