Of course it can be said of jails, too, that they try - by punishing the troublesome - to deter others. No doubt, in certain instances this deterrence actually works. But generally speaking it fails conspicuously.
We're all just trying to fit in and find ourselves, particularly when we're growing up.
Everyone's entitled to express their political beliefs. I don't presume to tell anybody who to vote for. I am comfortable telling people what my opinions are.

