In São Paulo, The use of "tu" in print and dialogue is no longer very common and is also changed by "você". Having said that, São Paulo has become home to quite a few immigrants of Northeastern origin, who may use "tu" fairly frequently inside their day to day speech. https://dexitex.com/userinfo.php?op=userinfo&do=profile&name=Your_Account&userinfo=piper-earnhardt_451691&from=space