There is extensive travel and trade accross the border. The American influence probably began in earest with the Sears and Robuck and Montgomery Ward catalogs which were circulated througout rural Canada. Notably Amerucan-style knickers were widely worn in Canada, but not Britain in the 1920s and 30s. Canadian boys like American boys began wearing jeans in the 1950s. The American massmedia today has trenendous influnce on Canada.
Most Canadian cities can pick up American TV stations.
Canadian stations crry American programs. Canadians read American publications. The media penetration is so significant that the Government has passed laws requiring Canadian content. The weather One factor which has to be considered in Canada is the weather. The winters are much more severe in Canada than n England and France.