Reglerne om værnepligt, brug af milde narkotika, krav om at være i besiddelse af identitetspapirer, abort, eutanasi og anerkendelse af homoseksuelle ægteskaber er meget forskellige i EU's medlemsstater.
. (NL) Matters such as conscription, the use of soft drugs, the obligation to carry an identity card, abortion, euthanasia and the recognition of same-sex marriages are regulated very differently in the different Member States of the European Union.