I totally agree with that video. I often feel as if a lot of people get so worked up over being lonely because society tells us that we are supposed to make friends. Well, friends are good to have and it's good to socialise, but I agree that being alone and observing the world around you is fine as well because it gives you the freedom to get away from social pressures for a while and leave more space for other endeavors.
Then again, I do have the luxury of having friends and acquaintences, so maybe I am a little ignorant about this.
However, oddly enough, I do find myself travelling to the city centre just to be alone. Oddly, it's the best place to be alone (at least for me). I would like to go to the movies alone very soon (normally I go with others because it is normally a special occassion which often means that you have to share the experience with others). I guess it wouldn't be much different from going with others, except for the fact that you wouldn't have anyone to discuss the film with or get excited about trailers with. I enjoy my solitude, though, so it's not that much different from what I normally do, anyway.