Your little, $250 handheld won't let you manage your own files until you are deemed worthy enough of the feature, by updating your firmware. Certainly, everyone has internet in this day and age- that's why if you connect your Vita to a networkless PC you'll find, like Wololo did, that it won't work. Like, at all. It won't connect.
...And it shall always look at you, watching you, spying on you, and writing your daily life on a database (let it be pornography usage and view, screenshot sharing, and other interesting, perhaps illegal information sharing...), like the monster it is.
Like, seriously, Sony?