The only limits are children, married folks, and really old people. We even thought about the player being able to break apart a married couple...but only for a minute.
Thanks, Pathea, good to know!
And man, I would love to see the Barber shop working. It would be really cool to see a bunch of neat hair styles that are only available from them as a money sink. Unique dye options would be really awesome, too. The hair coloring is super cool in the game, but being able to pay to also change just the tips, or just the roots, or add streaks, or even rainbow effects - THAT would be awesome.