The base in fashion is inspiration. Without inspiration, you're basically just throwing together clothes. Inspiration may even come along with pieces inspired by celebrities, musicians, athletes, etc. I am even remembering the late 1990s of message T-shirts saying matter like "I Have the Golden Ticket" and "Dump Him." But I think for it to become a trend, you have to see lots of people commits one style or wearing a certain style in different ways. Like when many of people wore skulls, it was because someone got looks to sell, and it caught on with people.
Do you have to follow trends? Absolutely not. But if there is a style you love, I'm sure you'll want to sport someone else's look and style with your own personal flair.
GENUINE TRENDS, now and then genuine don’t always mean following design cues from fashion designers and fashion stylists. It can be from normal people who probably aren't even trying to look stylish or cool. As the name of an old movie suggests, "Gold is Where You Find It."