I don't think there are any advantages to people taking the law into their hands, because law is meant to be followed, and when we don't follow the law, then there is no use in having it there. Laws are meant to be followed not broken. Usually when we take the law into our hands, the one thing that will happen is we will be held accountable, this means we will either go to jail or face charges in court for violating the law. Why would someone get themselves in trouble only to end up in jail, serving a term on something they would have avoided by just doing the simplest thing as following a law. Another thing i have noticed is that wgen we do this, many times we don't see trouble coming our way, you could end up fighting someone who is much bigger than you, and you get hurt in the process. It's only rational and prudent to always do what is right.