"Interestingly, though, doctors often ask married men for their wife’s permission before they’ll perform a vasectomy."

Yeah, but I'm not talking about married men. Once you're married, you should be consulting with your wife. If you're not, you've got problems.

Anyway, if these doctors are asking because the law requires it, the men should win their legal challenge. But I suspect the doctors are asking because they're afraid of getting sued, in which case, the men need to establish their rights in court so they can out-scare the doctors.