since the age of chivalry has been assassinated by women's liberation
Oh my! I guess I'll put away my shiny armor now. And besides, it was getting a bit dull from being a stay-at-home dad to a set of triplets.

And as far as the real knights in shiny armor -- from what I understand, they were usually mercenaries and castles were designed so that they could not have direct access to the lords' part of the castle as they could not be trusted.