Unless you have maxed your population, then you get that annoying popup that there isn't enough housing every time you do that. I usually just throw them together and log out of the game, they're usually at least adept by morning, if not masters.

I'm anxiously awaiting the update, I can't be on the game as much as I could in the beginning. I've had most of my (otherwise skill-less) doctors die at mid-adept level. Out of 20 doctors who had no other skills besides healing that I started at age 14, only 2 became masters before they died. I'm totally discouraged with this game, for now.