"History, more often than not. Text books on matters that concern my role in the household. Fiction... but only sometimes."

It wouldn't do to let an omega dream of other places, yearn for more, think themselves capable of adventure. Most heroes are alphas or betas, but still, it's best not to let Castiel start... thinking.

Or at least that seems to be the general idea.

He folds his hands in his lap.

"Did you know that centuries ago, it was common for alphas to earn the right to an omega by chasing them through the woods, and only claiming them if they could catch them? Some omegas eluded their prospective mates indefinitely."