This is from BC so maybe Ontario is different but people might find this interesting..... (btw not a lawyer just discussinf because this is interedting to me and im open to be proven wrong)....
A child’s parents on the other hand, may very well have substantial assets, but are they legally responsible for their children’s actions? The answer in most of Canada is no, however, the law in British Columbia is different. The
Parental Liability Act holds parents responsible for intentional loss or damage caused by their children up to a limit of $10,000. Parents won’t be responsible if they can show they supervised the child and discouraged the behaviour, making court cases under this law very rare. Claims have been started for reasons such as a stolen computer and for stealing from and then vandalizing a house.