With the 50th anniversary of the passage of the Official Languages Act celebrated in 2019, the question of its degree of acceptance by the Canadian public is in order for review. When the national policy on official bilingualism was first advocated by the Royal Commission on Bilingualism and Biculturalism, it frankly acknowledged that it was highly controversial and opposed by substantial portions of the Anglophone public. Nevertheless, they insisted that the policy was necessary for the survival of the country and maintained that the firm resolve of united political elites at federal and provincial levels eventually would generate political success for the policy. While elite unity was elusive and only partially realized, the essential elements of official bilingualism were adopted, expanded and have survived to celebrate its 50th anniversary. The evolving pattern of public opinion over the past three decades demonstrates that official bilingualism is accepted as an essential component of Canadian political life, but that acceptance is hedged by some important qualifications, and indications that any further expansion would not enjoy public support. Nevertheless, it is firmly established as a core operating principle of Canadian public policy.