If I recall UK already had several opt outs negotiated over the years to accommodate the 'delicate' political position in UK. Cameron went to Brussels and the capitals of Europe. They listened and decide enough was enough. Rest is history now. Hey ho.I wonder why folk in Europe and Southern Ireland, who are obviously so miffed that we had the temerity to leave the EU, are not demanding a public enquiry into why their leaders in Brussels did not listen to David Cameron.
If his reasonable request had been met, we wouldn't even have had a referendum.