A robot Ping-Pong player (look it up) needs only to be turned on in order to immediately start functioning. Is our infatuation with warming up just for calisthenics, so the muscles get loose? Actually, experiments have tried warming up the muscles in other ways, without taking the court or field, and found that the athlete usually ends up looking rusty and performing poorly. It is not just for calisthenics. A warmup is said to be more legitimately required for a cognitive recalibration, like tuning a guitar before a set.
