You can say "you" to anyone - it is the same word when you address a friend and when you address a president.
In most other languages there are 2 different world for "you" - one friendly and one respectful (for people you do not know, older people etc etc).
And that causes kind of awkward situations. For example - you see a person and you wonder how to address him. Or you get to know some business partner, you start with respectful "you", then after some time it maybe time to start using friendly "you", but you do not know when and you wonder if it is time already or not.
Etc etc.
Just random thought
