Why should women have to pay for pads and tampons?

Pads and tampons can be quite expensive and girls can't help it that they are going through extreme amounts of pain and are bleeding uncontrollably. Having a period is not a choice and women shouldn't have to pay for it. They should be free because not everybody can afford them even though it is completely necessary

No woman chooses to have a period, and society demands we use these products. Let's not forget that without them we'd be bleeding all over the place which is not only unseemly but also unhygienic due to blood-borne illness and disease. Without periods humankind as we know it would not exist. It is hypothesized that humans first learned to keep track of time by comparing a woman's cycle with the phases of the moon. It also goes without saying that man would literally not exist if it weren't for periods. These products are a necessity and companies are making billions every year by women.