Pants or no Pants?

I was part of a rather rousing conversation today.  A couple guys I know, who have been playing competitive basketball since age 15, and who are now 27 years old playing in a men's league, were discussing an opposing team player's choice of clothing for the court: pants.  

Now to the average person, this may not seem like a big deal.  However, as a basketball player myself, I have never seen this.  Not only are pants not fashionable for the court, but more importantly they are hot and restrict movement.  These guys just can't get over it, so I'm putting the ball in your court: Is it or isn't it a fashion faux pas?