It is, of course, impossible to know what I would have done. If I had been born in 1950 instead of in 1970, when I was actually born, my upbringing would have been very different. I would likely have had different attitudes. Simply going by my own life, I believe that I would not have been part of the counterculture.
The reason for this is that I believe that people should act in ways that are good for society, not in ways that are simply attractive to them. My feeling about the counterculture is that it was a somewhat self-centered movement that was largely about people who wanted to behave however they liked, regardless of social convention. I feel that this sort of behavior is somewhat self-indulgent and I do not think I would have participated.
Again, though, I grew up in very different circumstances than someone born in 1950. Therefore, I cannot know what my attitudes would have been if, for example, I had been a teen during the Civil Rights Movement and the Vietnam War.