The serve and the return each have to bounce before anyone is allowed to volley. It stops the serving team from storming the net straight away.
This single rule explains the entire shape of a pickleball rally. Because the serve and the return both have to bounce, every point necessarily starts from the baseline — the serving team cannot rush forward immediately. Hence the familiar choreography: return, then the third ball as a soft drop, then both partners edging up to the kitchen line together. The most common beginner error is volleying that temptingly high return: point gone. The second most common is charging forward on reflex after the serve and then having to dig the bouncing ball out of no man's land. What often gets missed: patience costs you nothing inside that rhythm — in pickleball only the serving side can score anyway, and games usually run to 11 points with a two-point margin.