No there is not a good reason for not changing the law.  But good luck getting a mainstream politician to take up the issue.  They would be under attack by both the Un-Christian right, and the Feminist left.  Some in groups like the Libertarian Party would support it, but they have a snowballs chance in hell of getting elected.  Ventura made it because he was celeberty, He wouldn't stand a chance if he had been an ordinary person running on the Reform party ticket.