How does the Canadian Government help single mothers?

I have a friend who is a single mother and is struggle to make ends meet. She had a baby at a young age so she could not finish school but recently started again. She is also from Brazil living in the states with a greencard and she would love to move to Canada. Would anyone know how she could be helped if she moved to Canada? The father by the way is a loser who doesn’t want to work so she left him.
She came to study in the states because she wanted a good education for herself. She was not having a good life in Brazil. She didnt’ plan on coming here and having a baby, she made a mistake and that mistake has cost her, her life. Im just seeing if she can get help, not to get ridiculed.