Traits lack depth, how can they solve this?

I agree with the above suggestions for turn ons and offs, the chemistry system and favourites to be added back in, as well as the option for more traits per sim. I also think the current traits need to be more specific as some of them are just too broad. For example, "loves outdoors" can easily be split into many traits - loves outdoors could mean that the sim literally likes being outside, but then you could also have a gardening/green thumb trait, an angler trait, an eco-friendly trait. When I have a sim who loves the outdoors, they don't necessarily have to have all those aspects of it so it'd be good to have more specific traits and more of them, and of course the option to choose more traits.

Equally, there are some traits that just aren't deep enough to take up a whole trait slot, especially when there are only three, like vegetarian. When being a vegetarian is considered 1/3 of a sim's personality, no wonder they don't have much personality.