If there is a municipal by-law stating you cannot ride a bike on the sidewalk, then that is all the boy can be charged with. He wasn't charged with that offence.
The boy cannot be convicted for Failing to Remain. He cannot even be charged with the offence.
Highway is defined under s. 1(1). A highway is "intended for or used by the general public for the passage of vehicles." A bike is a vehicle under the Act, but a sidewalk in not meant for vehicles. Since the boy was on a sidewak when the accident occured, he is not required to remain at the scene becaue s. 200 refers to a highway; not a sidewalk.
This is why the cop dropped that charge and changed it to Fail to Report. However, the boy cannot be charged or convicted for this offence either, as s. 199 only applies to a motor vehicle; not a vehicle.
The driver of a car should've been charged because he cut off a person on a sidewalk and his action caused an accident. Even though the boy might be in the wrong for riding his bike on a sidewalk, this wrong doesn't provide the driver the legal right or legal excuse to cut him off.
"highway" includes a common and public highway, street, avenue, parkway, driveway, square, place, bridge, viaduct or trestle, any part of which is intended for or used by the general public for the passage of vehicles and includes the area between the lateral property lines thereof;
"vehicle" includes a motor vehicle, trailer, traction engine, farm tractor, road-building machine, bicycle...
Duty to report accident
199. (1) Every person in charge of a motor vehicle or street car who is directly or indirectly involved in an accident shall, if the accident results in personal injuries or in damage to property apparently exceeding an amount prescribed by regulation, report the accident forthwith to the nearest police officer and furnish him or her with the information concerning the accident as may be required by the officer under subsection (3).
Duty of person in charge of vehicle in case of accident
200. (1) Where an accident occurs on a highway, every person in charge of a vehicle or street car that is directly or indirectly involved in the accident shall,
(a) remain at or immediately return to the scene of the accident;