Thank you for choosing TurboTax. Child Benefits are considered to be the income of the dependant and should be reported on your return under the "Deductions" tab > "Additional Dependent Information". You are not reporting this as your own income, and it will only affect your tax return if you are making a claim for the Eligible Dependant Amount for that child.

It's important to include this income as the income of the child if you are making a claim for the Eligible Dependant Amount for that child on your return. 

Withdraw Savings from a Registered Disability Savings Plan