Equality of access to mainstream education environments for all, and more specifically for children with disabilities, is the documented policy of the United Nations, European Union and the Irish Nation State. Transition from historical segregation practices requires States' commitment to the provision of relevant resources. This paper argues that although access to mainstream environments has improved, lack of capacity at multiple levels within the system to provide resources to enhance the "habitus" of teaching personnel and parents and to meet the special education needs of pupils with intellectual and/or pervasive developmental disabilities impedes access to enrolments in mainstream primary education environments. Pierre Bourdieu's Theory of Practice and Symbolic Power, which highlights how the accruals of various resources, termed capital, affect one's "habitus" and power relationships in the social arena, is utilised to examine the enrolment practices that are resource sensitive. The paper offers recommendations to enhance a positive "habitus" and universal enrolment practices.