Interaction between teachers and parents/guardians at the high school level is healthy and helpful.
For parents/guardians of high school aged children, the following conversation is probably very familiar.
Parent: How was school today?
Parent: What did you do today in school?
While not every day is eventful, things are certainly happening regularly. High school-aged children are generally not good reporters of daily school happenings with their parents. In this scenario, parental contact with the teacher can be helpful.