I sort of wish players could only choose one job.

[Taltale]

...the characters were normally reined to one role and thus were indispensable for their unique abilities. (Well, for the most part that is.) It is this, I think that allows others to more readily respect and appreciate the significance of that specific role and player when it isn't so easily replaceable, or if at all. The player and their name sort of becomes renowned with that role.

I agree with this. Not that I like to be labeled, but I do miss having the feeling of identity that came with having a focus in one particular job. Being wanted or even needed because I had that job. Having options to switch it up once and a while is good, I think, though I don't like the idea of every player being able to take on the role of every job (unless they worked hard to be able to take them all on). Passion behind the job is key to a good fighting performance.