"You" is used to refer to the person or people being addressed, either singular or plural, depending on the context.
One vs. You
If we want to talk about people in general, can we say, 'You must be responsible toward the environment' or 'one must be responsible toward the environment?'
For 2nd person singular and plural, formal or informal, we only have one pronoun in English today. So aren't you curious to know how do we tell the difference?
'Yourself' is a second person singular reflexive pronoun, 'you' is the second person personal pronoun both singular and plural. Can they be interchangeable?
An impersonal pronoun does not refer to a specific person or thing. These pronouns help us talk about a thing or person without mentioning what or who.
An impersonal pronoun does not refer to a specific person or thing. These pronouns help us talk about a thing or person without mentioning what or who.