When is a driver allowed to move on after stopping?

A driver is allowed to move on after stopping once they have verified that it is safe to do so and ensured they are following the proper traffic protocols. The best practice in this scenario is to follow the lead of vehicles that are already making safe maneuvers. By adhering to the movement of vehicles ahead, the driver is ensuring that they are compliant with traffic flow and are acting based on observed and predictable actions. This contributes to overall road safety, as it helps to maintain order and reduces the chances of making abrupt or unsafe decisions when entering traffic.

Moving on only after checking mirrors or simply feeling ready does not provide the same level of assurance that one has accurately assessed the traffic situation, while waiting for other vehicles to move might not necessarily indicate that it's safe for the driver to proceed. Therefore, relying on the actions of vehicles that are already on the move helps in making a more informed and safe decision.