Basically, the job classes in FFIV represent also, the different ways of fighting. In a similar way, you could class the FFIX people (Freya the dragoon in this case) or even FFX (Yuna as surprise surprise a summoner). If you looked at the classses, I dare say you found some class you decided you would like to be if you were like, in magical and medievil times.

Just my two cents (I'm english really so just my two pennies)