I would say yes, but the term "unruly" has certain implications that are subjective. Think of like this, who thinks they are evil? From everyone's viewpoint they are serving some kind of greater good. The same can be asked of "do your kids follow the rules?" While some might say no, most are going to claim that their kids do follow their rules.
Now while I believe you're suppose to nurture a kids creativity, my eye twitches when a kid is throwing stuff around and parents act like they are just being a free spirit.