What is generally required for individuals to qualify for Medicare benefits?

To qualify for Medicare benefits, individuals generally need to reach the age of 65. Medicare primarily serves older adults, providing them with essential health coverage as they transition into retirement. While most people become eligible at this age, there are specific circumstances under which younger individuals may also qualify, such as having a disability or certain medical conditions.

The other alternatives listed do not accurately reflect the qualification criteria for Medicare. Employment history, income level, or health status do not directly determine eligibility for the program. Thus, the age requirement is the key factor in accessing Medicare benefits, making it the correct answer to the question.