Sam2, yes in most Chassidic circles there’s no socializing between the genders. They don’t need Takanos, it’s their way of life.
However, in the Litvish/Yeshivish crowds, some Rabanim feel that Takanos are in place, due to the times in which we’re living. Divorce is rampant in the chareidi society, there are too many temptations out there.