I thought @justbugreportin was trying to do the challenge with another Sim living in the same household and couldn't ? So that one gets the trait as well ?
But I might have completely misunderstood that.
They seem to think that the "Challenge to Be Kind" interaction that sims who completed the Positivity Challenge and become Kindness Ambassadors is meant to be used on other sims to issue the challenge to them, like Millie Bobbie Brown does, so that you can continue making new Kindness Ambassadors and keep doing the positivity challenge even after the event ends.
I don't think that is how it works though? I haven't really tried it in game to see what it actually does. I was just focused on getting through as many sims as possible before the event ended I haven't actually played my kindness ambassadors yet.
