From https://www.parl.ca/DocumentViewer/en/45-1/bill/S-209/first-reading

Age-verification and age-estimation methods
(2) Before prescribing any age-verification or age-estimation method under paragraph (1)‍(b), the Governor in Council must ensure that the method
(a) is highly effective;

they'll bullshit their way through that one, no way you can make that "highly effective". It's all political posturing with the "protect our children" pretext, with the goal of eroding privacy without accomplishing the initial goal whatsoever.