Smh my head it should have been this thing then the child would be fine.
I find the focus on a cyclist doing a hit and run on a pedestrian to be funny. Like sure, it sucks and you could be injured but at the same time, bicycles are lightweight and fairly slow compared to cars (p=mv etc ). Heck even those fast >30km/h scooters are unlikely to kill you.
Aus Fatalities (2020) and serious injury (2018) by road user type:
https://www.roadsafety.gov.au/nrss/fact-sheets/vulnerable-road-users