The devs are also of the mindset that you buy the game, pay for a month, get what you want out of it, and then turn off your sub if you are bored. The largest core of the game is the main story content, and any multiplayer segments of it such as dungeons, trials, or even raids are all matchmade and pull from a pool of players doing their daily 'duty roulette' rewards so there's always players around for that content, you don't have to contact other people, and the way the game builds on itself in terms of complexity, as long as you pay attention and bother to learn the basics of your class and role as you play, you'll be able to just drop in to a run, not speak with anybody if you dont want to, and clear it with no fuss, and in later expansions there's even a 'trust' system which lets you do dungeons with NPC allies.
FF14 is easily one of if not the most single player friendly traditional MMO around.
