Which of the following can lead to the suspension or revocation of a barber’s license?

Gross incompetency is a serious issue in the field of barbering, as it directly pertains to a barber's ability to perform their professional duties safely and effectively. This can include a lack of skill in haircutting, improper use of tools, or failure to adhere to health and safety standards. Such behavior can pose risks not only to clients but also to the reputation and integrity of the profession. Because ensuring public safety and maintaining professional standards are paramount in barbering, engaging in gross incompetency may lead to disciplinary actions by the licensing board, including suspension or revocation of a barber’s license.

In contrast, excessive clientele, extended hours of operation, and social media presence do not inherently compromise the quality of service provided to clients or the safety of barbering practices. While these aspects might affect a barber's work-life balance or professional image, they do not represent violations of competencies or professional standards that would warrant severe disciplinary measures from the board. Therefore, they are not considered justifiable reasons for the suspension or revocation of a barber’s license.