When I saw Peter Sprigg’s Nov. 4 letter [“Why marriage is for a man and a woman”], I thought: Maybe here is someone who will give me the definitive argument for why marriage should only involve two people of the opposite sex. But it was not to be.

Mr. Sprigg argued that the purpose of marriage is for procreation, but that does not explain why people too old to procreate want to get married. What about people who married to declare their commitment to each other and to the world, as my husband and I did, among other reasons not associated with having children?

Why would the marriage of two people of the same sex be viewed negatively and ours not? Should people who are capable of procreating be the only people allowed to get married?

Virginia Grevett, Alexandria