This paper will trace the development of European Citizenship, including particularly the judicialisation of its legal provisions. The research will, thereby, detail how European Citizenship has altered respective residence and welfare rights for non-economically active citizens living in another member state by taking the example of mobile university students’ access to cross-border study finance. Specifically, this paper attempts to delve into the current discrepancy of European member states, which, at the one hand, struggle through adequately financing their welfare systems in times of crisis, and on the other, have partly agreed to measures of solidarity, including some redistributive elements, within the Union. This development is particularly interesting with regard to welfare policies as these have largely been integrated through CJEU case law albeit being foremost a member state competence according to relevant EU Treaty provisions and secondary legislation. Altogether, this process-tracing will be conducted via systematic document analysis and semi-structured expert interviews.