The odds of two emergencies are low enough that you can ignore this. Not that it doesn't happen, but it isn't that common. If you expect two emergencies you should have more in the fund to cover it.
And a lot of people simply don't have the money to build up that kind of fund. To suggest that they "should" is to be pretty out-of-touch with the realities of a lot of people. Sometimes they need to rely on credit, because there aren't any alternatives. So that credit becomes a lifeline, a good thing.
> If you expect two emergencies
Emergencies are unexpected.
And a lot of people simply don't have the money to build up that kind of fund. To suggest that they "should" is to be pretty out-of-touch with the realities of a lot of people. Sometimes they need to rely on credit, because there aren't any alternatives. So that credit becomes a lifeline, a good thing.