Mechanical engineers work in diverse environments such as offices, laboratories, manufacturing plants, and construction sites, similar to other engineering disciplines. Consulting engineering is highlighted as a particularly interesting career path, allowing for flexibility in client and location choices after gaining experience. Field engineers and field service engineers typically require a degree, with roles involving customer support and problem-solving in various settings. Passion for specific areas, like automotive or aerospace, can guide the choice of engineering specialization. Ultimately, pursuing mechanical engineering offers a broad range of career opportunities across multiple industries.