My native language -- Sinhalese -- has two forms: written and spoken. The written form, which has a grammar very similar to Latin, does have a universal "you", but the spoken form, which is largely grammer-less except for tense, does not. You literally cannot address someone without knowing their status/relationship to you. This leads to some difficult and sometimes hilarious situations:
- Children, family members and lovers are often addressed "oya". Using this on your boss or teacher could lead to problems. More acceptable when used by women and girls than by men.
- There's no way to informally address a superior without a salutation or a name. This leads to people repeatedly using a person's name or salutation in the same sentence. E.g. "Sir, should I have that report sir asked for on sir's desk before sir leaves for sir's doctor's appointment?"
- Some old fashioned couples have entire conversations (and sometimes marriages) without using second person pronouns because they don't have a single version they feel comfortable with.
- Male friends of roughly equal age tend to call each other "machang" -- a term that is well known to those who have known Sri Lankans, and roughly translates to "dude".
- There's no safe version of "you" that a young man can use on another that he has just met. Most risk using "machang", but could result in offense if addressing someone of higher social standing. This is solved by constructing sentences that avoid the word entirely.
- Most children, especially from my generation, do not feel comfortable using second person pronouns on their parents. They just repeat "mother/father" wherever the word "you" is supposed to appear.
- Sometimes the sentences are spoken with the word entirely omitted (like in Latin) -- "Can come over here?", "Did lock the door?"