Its because A) its hard to find a good job in general, B) its very hard to find a good job in a hurry, C) most people don't have much savings when they lose the

Its because A) its hard to find a good job in general, B) its very hard to find a good job in a hurry, C) most people don't have much savings when they lose their job, so they need to find another one quickly), D) these jobs are VASTLY easier to get quickly than most jobs, E) these jobs don't allow for much savings or breathing room, so stopping to spend a significant amount of time looking for a different job can be at risk of not being able to pay expenses. When you are stuck in survival mode, you take what you can get. You're not picky. And they are not bad jobs in some ways.