What is edgy these days?

I've been thinking lately how much I miss my old hair. I got it done when I studied abroad in Paris back in 2010, before all the 'edgy', 'cool', and, dare-I-say 'hipster' kids got their hair cut similarly. And I felt like it was the best fit for me. It spoke to so much of who I was back then. However, looking at how my style has changed since, my views on what's truly unique--what's really iconic of one's personal style--have changed as well. 

What do y'all think? What's considered "edgy" these days? Why do trends start? What does it mean to own a style now a days? Yet alone, a personal one at that...

Best,
Gent