While it is proven that there are health benefits associated with birth control, there are also many side effects. There are a number of birth control brands that can be prescribed, but some brands are not well suited for certain women based off of their medical history. It would be irresponsible to make birth control available without the consultation of a doctor first.
Birth control can come with side effects, such as headaches, vomiting, weight gain, and bleeding in between periods. There are also risk factors for women who are over the age of 35, have a history of cancer, high blood pressure, heart attacks, and blood clotting. Birth control is also risky for women who smoke. 
Because of these factors, it is important to consult a physician before taking any brand of birth control, no matter how healthy an individual may be.
While it would be a woman’s responsibility to know their medical history before taking birth control, some women may be unaware of possible health issues, or may be uneducated on how birth control may be risky for them. Making birth control available over the counter may lead to more health problems for women, and in some cases, can be very dangerous.