Agreed, but I'm not giving over any significant amount of cash to an individual without getting a signed release. $50 and hope I never hear from them again? Sure.
$100 and we don't exchange info/I made sure no pictures were taken or license plates studied is generally baseline IMO. Even if they're at fault, if it's minor I do not want my insurance to know about the accident. It will boost the premiums much moreso than paying off those involved.