This is one thing that's been bugging the player base since launch ; the lack of realistic careers. A game pack with loads of careers in it would sell really well, I bet. I even read that's it's on...
We got 6 career branches with City Living. Cats & Dog also had the "active option".
I do think that they should add more traditional careers. But ever since Get To Work, people want "active" careers, and aren't really interested in other careers.