Soc3315 law commission of canada jan 15, 2012. > concepts such as age and generation fail to acknowledge people within these groups can have a variety of differences. > categorizing people according to age groups fails to acknowledge the many differences and similarities between them. The age of majority/adulthood varies from place to place and policy to policy. > relationships between generations are characterized by interdependency. Dependency ratio: used to estimate the burden of public expenditures in relation to production. The dependent population (under 16, over 64) as a proportion of the working age population. A low dependent population over a high working population means the working people can support the dependents. > there is a concern that our society is becoming fragmented by age groups.