My son was crossing the street and a driver making a turn "bumped" him. The driver did bring him home; he had abrasions and a swollen elbow.

Assuming that your son did not abruptly step into the street such that the driver did not have time to stop before hitting him, then your son as a claim against the driver.  The questiion will ultimately be, how much is the case worth.  This is determined by the nature and extent of the injuries.  If there were only minor injuries, you may be able to effectuate a settlement for the medical bills as well as the pain and suffering without having to hire an attorney.  If your son is a minor, then you would have to negotiate on his behalf, otherwise, he would have to do it.

BARRY BESSER, www.besserlaw.com

Your son has a claim for negligence against the driver, who "bumped" him.  The driver's insurance carrier is liable for the injuries your son sustained including his medical bills.  When your son completes his medical treatment although it may seem to be minor injuries, you should obtain the medical report documenting the nature and extent of the injuries which will determine the amount of compensation for pain and suffering.  If your son is under 18, you would be handling the matter for him as guardian ad litem.  Guardian ad litem is a parent or guardian, who handles the affairs of a minor as the minor would not be able to represent himself in legal matters.