The Budesrepublik has states which are rich and states that are poor. All under the same currency. They survive by transferring money from the rich to the poor states. Scotland has poor regions and as a whole is being subsidised by England. All under the same currency. The United States has rich and poor states all under the same currency. It is not the best case when some states are poorer than others and have to have support, but there were always poorer and richer states in Europe. Now they are under the Euro and there will have to be support and there will doubtless be transfers of wealth.
The alternative is to leave them poor as they constantly devalue their currency - which was always the case for Greece and which kept most of them poor. Good for holidaymakers though...
Try being serious about Greece then.
Greece used to be a country of rich and poor people. Now after joining the EU and having the same currency tied to how Germany is doing it has changed. There are hardly any rich people left. The vast majority are either poor or destitute. But I will say one thing. The vast majority are still lovely people. But they are realistic. They can't afford to leave the EU. But they also know nothing will change if they stay in.
I was talking to someone from Romania who is working in the hotel. It is his first and last season there. To him the money wasn't bad. But the price of living for him is astronomical. He has been offered a job over here. He will be living in Cambridge and working on a farm. He knows it won't be easy. But it will be much easier than he has it now. He is working up to 16 hours a day 7 days a week.
We went out for a meal a couple of days ago. The wife was surprised to see the waitress. She had done their nails earlier in the day. She has a family with two young kids. But she can't afford to spend time at home with her family. And they still rely on tips to get by.
Then you say good for holidaymakers. Would you like to tell me in which way?