What can cause a driver's license to be canceled?

A driver's license can be canceled for various reasons, and failing a driver's re-examination is one of the most significant causes. When a driver is required to undergo a re-examination, it typically follows concerns about their driving ability, which can be due to multiple reasons such as accumulating too many demerit points, being involved in a serious accident, or showing unsafe driving behaviors.

Should the driver fail this re-examination, it indicates that they are not meeting the necessary standards for safe driving as determined by the licensing authority. As a result, the authority may take action to revoke the license to protect public safety. This ensures that only those who have demonstrated the required competency are allowed to drive, thereby maintaining road safety for all users.

In contrast, attending a driving course is often seen as a proactive step toward improving driving skills. A clean driving record suggests responsible behavior, and moving to a new address typically does not inherently affect the status of a driver's license unless there are specific legal requirements in that new location that require action by the driver. These options do not present a scenario that would lead to a cancellation of a driver's license.