Hello,
Language and currency switchers on our demo are just for demonstration purposes to show the customer that there is area where he will be able to add these things if he use plugins that include such switchers.
If you want to implement the real language switcher use one of the additional plugins that allow you to create the multilanguage site:
– WPML https://xstore.helpscoutdocs.com/article/31-translation-with-wpml
– qTranslate
– Polylang
Regards