Vector Financial - Affordable Health Care Act, Health, Life and Disability Insurance Specialists, Why do I need health insurance? Today, health care costs are high, and getting higher. Who will pay your bills if you have a serious accident or a major illness? You buy health insurance for the same reason you buy other kinds of insurance, to protect yourself financially. With health insurance, you protect yourself and your family in case you need medical care that could be very expensive. You can't predict what your medical bills will be.