We haven’t lost the art of anything. We don’t talk because there are too many things not safe to talk about anymore.
For your point, yes. For another, more and more people exist I have no desire to talk to, for one or more reasons.
That’s right, sad to say.
I talk about whatever I want to. To whoever I want to. I only stop myself from talking on certain subjects because of where I happen to be at the time.
I have no fear of offending anyone or losing friends. Be bold! Speak what you want to speak.