There is too many advantage for companies and countries to have different currencies. There will not be a unique world currency in the next 10years (at least)
Historically EUR/USD has a positive growth. Governments will help the countries that have problems and the EUR will grow again. I don't think it can fall more down than 1.30
Ask your friend to wait for a big economic news (a news that that make a big trend changing). If he still make profit, he might be a trading genuine and be ready to make profit on a real account.