On a related note, MEN probably invented girdles too & other restricting garments like CORSETS that our ancestors wore! All these items make it uncomfortable for or restrict women in some way.

Lynn is right that they are expensive (quality ones) and so are other necessary things, like feminine items for that monthly ordeal that goes in for DECADES. I mean, you can't walk around bleeding on everything. And stupid supplements or HRT for the miserable menopause symptons are also not cheap! They know we need these things, and they make us pay dearly for them. Think how much money women would save if there was no such thing as periods.