Why It Scales From Youth Basketball Upward
Most offensive systems require several players to execute in sequence, which means they fail if one participant is untrained. The pick-and-roll needs two players and one concept, and the concept is legible: stand here, run there, react to what the defenders do. That makes it teachable early, and it makes it usable at any point in a possession, which is why it also functions as the universal fallback when a designed set breaks down or the clock is running out.
It also converts individual skill directly into advantage. A team with one good ball handler and one competent screener can generate reasonable shots without the coordination that a five-player continuity offence demands. The same action then keeps working as the level rises, because better players make the reads faster and better shooting makes the help more expensive. Few concepts in team sport improve as smoothly with the quality of the people running it.