There are different levels of parental oversight: a Joint Account, an account with Signing Authority, or a Single Account
If the bank account is Joint, then all account holders have full access to the account and can make transactions.
Or if the parent or legal guardian has Signing Authority, and the child is under the age of majority in their province or territory of residence, then the parent or legal guardian will have access to the bank account and will be able to withdraw money. Once the Youth reaches the age of majority in their province or territory of residence, the parent or legal guardian will no longer have access to the account.
However, if it is a Single Account, then only the named account holder (Youth) will have access to their account. Your parent or legal guardian does not have access and cannot withdraw money from your bank account. This account access option is available to those 12+ years old.