Cool, I'll be giving this a try. Even with harder jobs, I'm still looking to make jobs even harder. If it's hard to skill up enough to get much further than the first few career levels, there might actually be some incentive to work in dead-end OFB jobs. Yay for more poverty!!! I don't even have anyone living in my ghetto right now.
ETA: Wow, that sure did the trick! This is absolutely going to make Uni harder, and that's a good thing. For the first time ever, I had to struggle to get my Sim a B+, and that was only because I had her pull an all-nighter playing piano to get her grade bar opened up.
My ghetto is going to be bursting at the seams! I might even get to use my government subsidized apartment building