Originally Posted by RyeBread
You'd have to ask the folks that get squeamish about it.
Why stop at "both" - why not allow for plural marriages?
Those secularists that argue that marriage is nothing more than a contract surely can see that LLC's, and Limited Partnership agreements can easily accommodate that type of arrangement as well.
Why do they have to be consenting adults? Power of attorney can also substitute in a ton of contract oriented law...
Plural marriages are cool too if that's what makes some people happy.
Contracts COULD suffice if the government gets out of the marriage business altogether. You would run into the issue of sharing insurance, finances, etc. if not every entity recognizes that contract though.
Why do the parties involved have to give their consent you ask? Seems awful messy to have third parties entering someone into a marriage.