You can't just decide, "Well, since I really hate this place and these people, I'll quit," like you can with a job. You have to deal with it for 8 hours a day, 5 days a week. You can't really do that with a job, either. Especially if you are taking care of a family. It doesn't exactly look great to apply for a job and explain that you left your last one because you didn't like the atmosphere.