Things that will improve the Sims 4. What are your ideas?

A Fear emotion or system, and character flaws. I feel like every Sim is a Mary-Sue character with no real flaws in their personalities. We have a ton of options for positive awards to add to our Sims, but what about weaknesses and negative traits? I'd love to see a new system that allows us to purchase some bad behaviors.

And, as I've stated above, our Sims need to experience Fear. They just don't feel complete without it.