Yes, to both observations. But . . . . . The tango revival came about from tango shows, not surprising then that it attracts those extroverts who like to perform. But that image discourages those who actually can or have the potential to dance. Even more surprising, and unsatisfactory, is that most pre-milonga classes in BA are taught by professional dancers. Guess what they teach - moves. I never understand what the milonga organisers are thinking of. Oh yes, money! And from personal experience, yes to this too. Hugging strangers is not in our nature, often it doesn't even happen within families. I too have experienced this first hand. Even teachers who made special claims about their standards failed to comprehend this. Social Tango is not a commercial dance, it's a dance of the willing few. Especially now that dancing in general is very much a minority pastime.