You are the gift that just keeps on giving aren’t you? This is a lie. The UK and Denmark have negotiated opt outs from the Euro which can only be overturned by the governments of the UK or Denmark. The seven other EU countries not yet in the eurozone are meant to be working towards it but the EU isn’t enforcing this and has no mechanism to enforce it.
Esther McVey made the same mistake on her twitter feed and had the piss taken out of her. A former government minister unaware of the very basics of what she is so opposed to.
Will all EU countries have to adopt the euro after 2020?
http://www.bbc.co.uk/news/uk-47523168