Blue-collar jobs refer to occupations that typically involve manual labor and skilled trades. These jobs often require specialized training or apprenticeships rather than a four-year college degree. Common examples include electricians, plumbers, and construction workers. Blue-collar workers are essential in various industries, including manufacturing, construction, and maintenance. These jobs can be physically demanding and may involve working with machinery or tools. Blue-collar workers often earn hourly wages and may receive benefits such as health insurance and retirement plans. The demand for skilled blue-collar workers remains strong, as many industries rely on their expertise to maintain and build infrastructure.