She and the family have had little time to consider what else it could pay for, but with serious head injuries the recovery is often long and trying, so it will be a comfort for the mother-of-six not to have to worry about needs as diverse as childcare and medical bills.
It might also help others suffering from head injuries or similar trauma.
Why did the public feel so moved to donate?
In part it will be because she is the young mother of so many dependents, two of whom witnessed the attack at the time.
It might also be because Lucy Knight had the courage to do what so many of us hope we would do: she tried to stop someone attacking and robbing another, older, person.
The money is, then, both recompense and a spontaneous form of public reward.