Integrating localization globally for languages

Greetings Laracasts,

I had read several tutorials about localisation in laravel All of them use: sessions. So if i want to integrate it globally as client connects to my laravel website he choose the guest session or he can login or register ,so if he use guest session he already have change language globally ,because i want integrate the language change links in my layout view Correct me if the logic is not correct please.

Thnx.