What could happen if the ignition switch is not released immediately after starting the engine?

Releasing the ignition switch immediately after starting the engine is essential because keeping it in the start position for too long can lead to damage. When the ignition switch is held in the start position, it continuously sends power to the starter motor. This excessive power can cause overheating, which may lead to the failure of the starter itself. Additionally, the starter gear may grind against the flywheel, causing wear or damage to both components. This potential for damage underscores the importance of letting the ignition switch return to the run position right after the engine successfully starts.