As a matter of fact, I paid the fee for my big duaghter who was 8 years old several ago but I didn't get a refund.
I just found about this:
Who’s exempt from giving their biometrics
You don’t need to give your biometrics if you’re
a Canadian citizen or citizenship applicant (including passport applicants)
an existing permanent resident
a visa-exempt national coming to Canada to visit only
a head of state or head of government
an applicant who qualifies for or holds a diplomatic or official visa
US visa holder transiting through Canada
an applicant applying for a visitor visa, a study permit or a work permit who has already provided biometrics for a permanent resident application that’s still being processed
a child under the age of 14
an applicant over the age of 79
There is no upper age exemption for asylum claimants.
