That is certainly one of the traditional reasons for marriage. Historically, marriage was about many things, including property rights. Interestingly enough, most people have no problem with heterosexual couples who are unable to have children getting married. That’s because society in general knows that marriage is about many things: including affirming the love and commitment that two people have for one another — a love and commitment they wish to affirm publically. That pertains to the LGBT community as much as it does to John and Mary Jones.