Responses

She decided to make them her responsibility because she loves them. She could have easily just focused on herself. The little ones didn’t ask to be in the situation they’re in either. They don’t have a concept of money or hard work, it’s like hitting a dog for barking. They won’t understand and their behavior won’t get any better.
There’s no reason to ever hit a child. Kids don’t have the capacity to understand how complicated the world is or how hard their sister is working, and her hitting them isn’t going to do anything to help them understand. They’re all too emotionally vulnerable and dealing with unresolved trauma (including mc) and they need therapy. Mc is acting just as immature as the little kids when she decides to use violence rather than reason.