Just makes me think you are looking for the barely legal lay and those Canadians do make it so tempting. Hardly, in my opinion, really puts someone in the "predator" bracket.
Yup, 16 in Canada is the age of consent, with exceptions for people in authoirty positions. If you are in your twenties and did not go to school with this child, it is kind of creepy to have to wait for the school bus to bring your date home. Heck, my cousin was 16 when she had a 20-year-old boyfriend, and it hardly scarred her for life.
If by date you mean have sexual relations, the answer is yes.
There is no restriction since the age of consent is 16 in Canada.
I'm not sure if this is the correct forum to post under, but here goes.