I've been having the same problem as well. I have 4 adults (and 2 children that are babies). Of the 4 adults, 3 of them work at the fire station and 1 of them works in real estate. All of them will go to work except 1. At first, I thought it was because she was 5/5 (on the job progress) at the fire station and no one else was. I thought that maybe since they completed the entire progress that they would need a "new" job. I switched jobs for this person but that didn't work either. This is the only sim of mine that won't go to work and I'm not understanding why. If anyone knows how to fix this, please let me know. Thanks!