I have a question about the Grant Youth power. I have used this a few times, choosing villagers who are somewhat proficient in the Devotee category. I was hoping to retain teachers and give the opportunity to learn all the skills. But it seems that my villagers have a much slower rate of building mastery during their second life. For instance, I have a villager who was an Esteemed Elder by the time she was elderly, with four skills mastered. I made her a builder when she turned 14, and she is now about 30 years old and has still not mastered that skill.

Am I correct in the assumption that skill building takes longer in a villager's second life? What if I attempted a third?