Please do not lock Jobs to the Weapon Class that unlocks them.

[Sorel]

at the end you can still solo with your fav class and wep without making yourself a job.

And there's the rub. Once we start down the road of only allowing what is useful in party (whatever the powers determine that to be) to exist in the game, we start disallowing what players can do solo.

"You can play a solo Red Mage, but only using a sword."

or

"You can play solo with a staff, but you can't be a Red Mage while doing so."

Either way, it would amount to the same thing. Whatever the powers that be dictate as the "proper" way to play a Job will be the only way you are allowed to play it. Party. Solo. Period.