A master's degree in engineering is often required to become a licensed Professional Engineer (P.E.) in certain countries, such as Canada, while in the U.S., a bachelor's degree in engineering is typically sufficient, although some states have specific requirements. Those with a bachelor's in physics may face challenges in securing engineering jobs, as most employers prefer candidates with engineering degrees. The discussion highlights that pursuing an engineering degree is generally the best route for those aiming to become professional engineers, especially in fields like mechanical or electrical engineering. Additionally, job prospects and salaries can vary significantly based on the chosen engineering major and personal interests. Ultimately, individuals should prioritize their passions and interests when selecting an engineering specialization.