Why do social worker/child protective service people need to know my grades and ho well i do in school?

Cause it'll help you: If urnin cps, then your parent(s) have been deemed unfit to care for u. Hopefully their behavior will change. In meantime, cps/soc worker will take on a parental role, which means they'll 'meddle' in ur personal life, because they care. That can feel intrusive. I hope u can either return to ur parents, be adopted...We all get bad breaks in life, sounds like urs came early. I feel 4 u. Good luck.