Why does everyone wear the same thing?

I see several coworkers wearing brand new vans.
I don't get it. And they are the exact same.
Its very noticeable, everybody searing the same shoe. I say this because I've seen 4 people buy them within the last week or so.

I won't be wearing the same shoes i wore in HS
Not my style.

On another note, i took a sewing class and have learned how to use my machine.
I can't stand the cookie-cutter, generic, trendy junk.

For those who want to argue about anything I've posted, you can argue with yourself