I like it vague. More intricate backstories and scenarios alway felt like playing with someone else's dollies or that my stories are only fanfics. I think it's telling that I got into playing the premades in Desiderata Valley, Sims 2's least developed neighborhood and characters. It had just enough storyhooks to work with, while not being too much in my face.
The instances where they tried to built their own lore in Sims 4, like the two universities, actually put me off. Now I have to retcon existing lore to fit my world instead of simply being able to build my unis from the ground up.
