In some low-income neighbourhoods, there may be no programs for children to enrol in. There hasn't been a systematic study, but especially in low-income parts of cities and in rural communities, you may have few opportunities. You may have parents working long hours, not having the time to organize groups to organize these programs, so that could be one problem. Second, with parents working long hours, it could also be transportation or not having extra money to get their children to these sports. This is another barrier aside from being able to pay for these activities.
On October 26th, 2006. See this statement in context.