Ah, didn't know the exact time frames, but that's good to know!

Of course, one can be a friend, and a close one at that, with somebody whom one refers to by a title. But to me and my peers, the ability to call somebody by their first name means that you have achieved a certain level of intimacy, which is why I and my peers enjoy/prefer being on first-name-terms with many of our adult peers and companions (who, as I explained before, exist OUTSIDE of school and work and similar professional areas).

I just really fail to see how it's disrespectful to enjoy and to seek being on such intimate terms with a person. Like I said before, my neighbors and other such adults have always introduced themselves by their first names. That signals to me that they desire to be called by their first names, and I hardly see how it would be disrespectful, then, to address them without a title.