Enlargement of the European Union and "morally imperative", which reflected the desire of the EU to admit these countries as members, even though they were less developed than the Western European countries. Following this Romania and Bulgaria, though were deemed initially as not fully ready by the Commission to join in 2004, acceded nevertheless on 1 January 2007. These, like the countries joining in 2004, faced a series of restrictions as to their citizens not fully enjoying working rights on the territory of some of the older EU members. Bulgaria and Romania are not yet members of the Schengen area; however, their citizens can travel
Opinion polling for the United Kingdom European Union membership referendum to renegotiated terms or whether they thought the UK should leave if they do not like their current terms of membership. Newer countries to the European Union, countries which have joined the Union since 2004, were the biggest supporters: 52% supported the renegotiated position, compared to just 40% of respondents from EU members who joined before 2004. An ICM online poll of 1,000 adults in each of nine European countries in November 2015 found an average of 53% in favour of the UK's remaining in the EU. Following the EU referendum, there have been numerous opinion polls on the question