Letter to parents of a teenager giving them advice about whether or not they should let their child work in a fast food restaurant

Dear Mr. and Ms. Zamot,

I am the headmistress of your daughter's highschool and I am writing to you to advise you about the low scores she has had the last semester.
You should know that during the last three months, your daughter has been very exhausted, she falls asleep in class, she doesn't do the homework and sometimes she cuts classes. We have realized she is working in a fast food restaurant and we think you should consider not letting her work there.

We don't know the reason why she is working, probably because the family's economic situation but if the reason is only for buying some shoes, you should think about it. Education is more important than earning some money. We know this is not a permanent job, perhaps it is a job to begin in the working world and to take some responsabilities, only if the teenager is able to continue with school.
Probably she should try to work less hours if you consider allowing her to continue with her job without risking her future education.

I would like to request an interview at your convenience and we can talk more with you about this situation.

I look forward to hearing from you. Thank you for your consideration.
Sincerely,
Ms. Burke