Not all good ideas are necessarily leading to good projects. The latest witness therefore is the project of free Interrail tickets for young Europeans. Another example for a failed European proposal is the associated Union citizenship. For British citizens, the upcoming Brexit means losing their rights as citizens of the European Union. The rethinking of Union citizenship and the creation of transnational electoral rolls offer an alternative concept to the complete exclusion of British citizens from the European institutions and the political decision-making process. In light of hard lines in the Brexit-negotiations, this contribution shows the possible options and the added value of an associated Union citizenship.