Require schools to notify parents with PR of welfare concerns about their child

I want the government to change the law so that all parents with PR and no history of violence and abuse get notified through the school etc when a child is in danger i.e. Suicidal thoughts and self harm. I think it should be compulsory that parents are notified when there is a risk to the child's welfare. I think social Services should get involved if a parent withholds this information from the other parent. I think schools should automatically inform the other parent regardless of parental disputes.