There are these types for sure.This is generally true. But I know many couples in that age bracket where the guy is unemployed, and the woman is supporting him. These are guys who tend to have long term problems, a history of being unable to get their sh!t together. Some woman have some kind of caretaker syndrome, maybe they like to feel needed. These aren't ugly women either. They may complain about the guy, but they haven't broken away from them. They very well may at some point.
One thing that hasn't been addressed is how much a girl will bend the rules depending on your looks.
Looks can get you in the door but looks can also make the gals make exceptions(break her rules) for you that she normally wouldn't for others.
I've personally had experience with this as well has heard countless stories from girls about this scenario.
So yes besides someone naturally having a "caretaker" syndrome, there are situations where a girl will make an exception for someone that looks good as well.