Persons not held to account are apt to repeat actions. Next time it may not work out so well for somebody else.

The fact that she was unnerved to extent by the "accident" also indicates her unpreparedness for operating a motor vehicle. She doesn't understand her responsibility and the possible consequences therein.

At the very least you should have received her insurance and license info. You may have suffered injuries that you were unaware of at the time. And medical costs are extremely expensive even with good insurance.