Joining together with other European countries makes the money of every single country stronger. That's called a common European market. Using the same currency in different European countries will help when people or companies use money, like with trading, investing, and traveling.
When companies sell things to other countries, it's called trading. In the twelve countries that are using the euro, they won't need to figure out how much something they want to trade is worth in francs, Deutsche marks or shillings because it's worth the same in euros.
The European Union (EU) is as wealthy as the United States. The EU is the world's biggest trading area.
The value of the euro will stay pretty much the same as it is now. Before, money would go up or down and people would lose money when that happened. Investing in stocks in another European country will make money for people and companies because the euros in each country are worth the same. People don't need to worry about how much it costs to buy another country's money.
The euro will stay strong like the Japanese yen and the U.S. dollar.
Tourists won't have to change money whenever they cross into another country anymore so traveling will be easier. Before the euro started, people had to change their money when they traveled to countries in Europe. That would be like if someone went from Illinois to Kentucky, they would need to change money and that would take a lot of time, and cash machines in the United States would need to have money for fifty different states.
Europe isn't trying to turn itself into
another country like the United States. The euro means a lot
more to Europe than just money. It represents a political
union, too. Europe has a much longer history than the United
States. The nations gave up some of their own heritage and
sovereignty to become part of the EU. By doing that, each
country became stronger. The more the EU works together, the
stronger each country will become.