Do you think I should be allowed to go see Armin Van Buuren?

My favorite DJ, Armin Van Buuren is going to be in my city (Minneapolis) on October 1st. The thing is it’s an 18 plus event.
I’m a 17 year old who makes 20 dollars an hour and is in college.
I should be allowed to attend this event. Why do these restrictions exist?
Maybe this isn’t a good question. I’m just frustrated that a 246 day barrier exists between me going to an event that I would do anything legally to go to.