In this article about the Occupy Melbourne movement: why does the writer open his article with this quote from a song?
"I wish I was a punk rocker with flowers in my hair.
In '77 and '69 revolution was in the air. I was born too late into a world that doesn't care.
Oh I wish I was a punk rocker with flowers in my hair."
The reason that the author does this is because the late '60s and to some extent the '70s are typically seen as a time when people were very opposed to the capitalist system and change seemed possible. He is implying that many people in the protest movement would agree with these lyrics and wish to develop a counterculture like that of this earlier era.
But the author is saying that the protesters need to move beyond this. They need to not look like a "group of ferals looking for a protest" and instead to try to do something that represent the mainstream more generally. The author is trying to point out that there could be a great deal of support for change today and that the protesters need to act in ways that would allow them to gain that support.