And we vehemenently disagree that Luke strongly points towards Mary ever being a "temple virgin."
Also, the Protoevangelium does not prove custodial marriages either considering that someone made the entire book up. It can not be trusted a source for anything.
In vehemence you don't lack.
someone made the entire book up.
Even granting that, his contemporaries in the 2nd c believed it, and they knew the culture.