There are no Central registries/indexes in Canada for BMDs. Canada has very strict privacy laws and each province imposes its own even further. Additionally, some provinces are more research friendly than others so researching in Canada can be challenging. As a guide BMD Records are only available for births more than a 100 years ago, marriages 80 years ago and deaths 70 years ago.
Trying to trace modern day families in Canada you depend on newspaper announcements, cemetery records, obituaries, telephone directories.
So you can see from that how tight the privacy laws make it in trying to get information.
Sandra