Family issue

Assalamalecum,I think she should have been patient and she should teach Quran and tried to revive fear of Allah in him, Allah in ch 5 v 90, gambling, intoxicants all are trap of satan, but for now pray to Allah for his comeback, in Sha Allah if he comes back teach Quran to him because that's the only thing that can improve him.

A brother who is 23 years old who does drugs and disrespects his mother he repeatedly denied that he smokes to his mother. she was tired of his behavior and kicked him out of her home. She cried about him when he was living with him and still cries now that he is gone. Did she make the right decision?? She prays for his guidance he said he is never coming back if she kicks him out.