Mother will not work

I'm 17 and my mother will not work every job she gets she complains that she doesn't like it or she doesn't like the people she usually quits within a week we barely get by on bills sometimes we don't and the lights are out for a few days I understand it can be hard for a single mother but all she has to pay is one simple light bill we have no other bills we get snap benefits so she doesn't have to buy groceries I don't understand why she puts us through this when it could just be so simple.