Like i said, even many Google pages are not SEO optimized... also in big companies there are big structures and you have to know this structures to properly use

Like i said, even many Google pages are not SEO optimized... also in big companies there are big structures and you have to know this structures to properly use them. Multilingual is a extension of single Lingual and if you do not set up something as multilingual (may because its to much overhead for a small project) its pretty much work to fix it later on... and sometimes its not even possible, because your desired my domain.fr (fr = france tld) is already sold ...) By the way: being smart does not mean anything as long as you can't show it. And being smart in one thing does not mean you are smart in every way. There are just ordinary people at google who do not SEO optimize their pages and make mistakes setting up multilingual pages ... just normal.