: The U.S. Supreme Court has previously invalidated laws that tried to prohibit the sale of condoms to minors under 16, citing a minor's right to privacy regarding procreation.

: Legally, a cashier cannot refuse to sell condoms to a minor. While they might ask for ID, there is no legal basis to require it for this specific purchase. Where to Purchase

A 15-year-old can find condoms in various public and private locations: How Old Do You Have to Be to Buy Condoms? - Healthline

: Condoms are considered essential health resources for preventing STIs and unplanned pregnancy, meaning they are sold without age restrictions.