As already stated by another commenter, then keep your site in English. You will still have access to a market of millions of typically young, well-educated Eur

As already stated by another commenter, then keep your site in English. You will still have access to a market of millions of typically young, well-educated Europeans. But you need to let them sign up, ship stuff to them, etc. That's where it often fails. You will need to have your European offerings checked by a lawyer, but with the EU harmonization it might not be that big of a deal.