The EU Countries

Was it a good idea to form the EU whereby all the countries have one single currency "The Euro" ?

I think this idea is going to have a negative affect on all the European countries because they under extreme economical pressure.

Germany having the strongest economy, will have to bail out most of the struggling countries such as Italy, Spain and Greek. I do not think that the Germans are too happy about this idea.

How can one central bank control all the economics of all the EU countries ?

If the EU countries do not come together and each leader start desperate measures to sort out the economic situations we will see a financial crash that we have never seen before.