Mentor Trait?
One of the traits you can buy with aspiration points is Mentor. Apparently it lets your sims mentor other sims when they reach level 10 of a career, but my sims have always been able to do that anyway...
Forum Discussion
Yeah, what asimbsim said is correct. Any Sim can mentor another Sim after skill level 10 but no trait bonus is passed on from the mentor unless the mentor trait is used. Someone can test it but from my experience the mentor trait has purpose. The parent needs the mentor trait for the child to get the expertly mentored bonus trait.
