I never had any reason to doubt my citizenship, not even when I learned in school how our system of government worked, who is a Canadian citizen and who isn't. When I studied law at UQAM, I even took a course on immigration and citizenship. But I never had any doubts about my own citizenship.
Today, there are members of my family who obtained U.S. citizenship and are afraid they are going to find out that they have lost their Canadian citizenship. They got the certificate Ms. Forrest referred to.