A civil ligation is something completely different and cost MONEY first you would need to find lawyer that will accept your case which will not happen and if it did the lawyer’s fees would cost you more than the amount you are suing for.
They would be in small claims court for a $1000 lawsuit. The filing fee is usually under $100 and in many jurisdictions attorneys aren't permitted.
However, since he's a minor I don't believe the OP can file the suit, one of his legal guardians would have to.