Liberty is NOT "what you are allowed to do". Liberty is being able to do what you want, with certain obvious exceptions.
I think I should be allowed to do what I want, providing it doesn't hurt someone else. (Providing I am of legal age, too. And that's a whole other argument.)
But it also means being responsible and it means not avoiding the consequences of your actions. Sure, take off 6 months to write the novel, but don't whine (and I know you wouldn't!!!! Ax) when you have no money for food or rent. A person who took off 6 months to write without having arranged his affairs properly is an irresponsible nutbar. And the world is full of them.
But I am also a pragmatist and recognize that C_G's Libertarian Utopia never existed, doesn't exist now, and never will exist. I am happy enough with the status quo, although I am saddened to see the USA infringe on the sacred liberties of its citizens.