All functionality that uses a dragging movement for operation can be achieved by a single pointer without dragging, unless dragging is essential or the functionality is determined by the user agent and not modified by the author.
For any action that involves dragging, provide a simple pointer alternative.
Some people cannot use a mouse to drag items.
It's good to be aware that the single-pointer alternative doesn't have to be the exact same component. The functionality just needs to be equivalent to the draggable action.