Replying to Street wear to skate wear or vice versa?

So we all know most fashion trends start in fashion obviously, after that it goes directly to influencers such as A$AP Rocky and $uicideboy$... but after that it becomes blurred in between Skateboarders and casual street wear. we know that skiers are at the bottom, as they usually catch onto apparel trends a little later than the rest.

Do skateboarders follow what’s trending on the streets or do the streets follow skateboarding trends? Are they somehow intertwined since Skateboarding is an art of Urban Expression?!