Those are among the most important aspects in a relationship for many people. Other examples include common interests (sometimes even hates), communication, and flexibility. However, I think these people are missing something else in their criteria....
Even though I haven't had much of a love life (yet?), I've watched relationships work, and not work; I've watched my own crumble into but ashes... And from all of this, I've come to the conclusion that another important part of a relationship (at least in the modern world) is autonomy. Most, if not all of the students I know who are in steady relationships, have jobs as well as cars of their own (or they're allowed to use their parents' car, or they have the money to use public transportation services on a regular basis). The jobs give them something to do, something to keep boredom and idleness and excess liberty away, something to keep both parties from getting sick of each other too quickly....
On the other hand, I am not to touch my mother's car unless she's in it too (then what was the point in getting my licence? I'm probably not even going have a chance of driving alone until after university), and I have never had a paid job, and thus, I rightly still consider myself a dependent (despite having been outside of the 0-14 age range for three years). Obviously, that makes it difficult to get out (or maybe I'm just a self-pitying hermit thinking of lame excuses), not to mention where I live, there is little in the way of entertainment or public transportation (particularly routes that go outside the city--you REALLY need a car to get anywhere). I'm also very private about my relationships (not just relationships, I keep quiet about most things) around my family... Sure, questions are inevitable, but I'm never comfortable with being asked about what's beyond the surface (shut up, don't think too much)....
I'll be in university in less than a year, in an urban environment with numerous SkyTrain stations, and away from my family, but still without a job (and only working in the summer)... Should I find a partner, I wonder how he (or she? Though I get the impression that my family's homophobic) and I would fare? Without a year-round source of income, probably not too well. And it's not like I can ask my parents for money all the time, or always expect the guy to pay....
At least that's the impression I get....
Or maybe I'm just an uptight, over-analyzing prick.
-bookguild