I'm pretty worried about this. I don't think most of the public are well enough informed to make this decision and I can't really blame them given all the propaganda. I could see many people making their decision based on immigration alone. One place that's going to be particularly hard hit by an exit will be Northern Ireland considering it shares a land border with the Republic of Ireland. In order to keep the current abilities to travel across the border with zero restrictions (the border is essentially invisible currently) I'm sure a lot of new laws will need to be worked out. I could also see a lot of businesses simply shifting offices 50 miles across the border to keep business within the EU.