Don't understand making weapons when quests give them?

[AreeSoothsayer]

Some one needs to make the base weapons for relic weapons. You know those green weapons that you have to attach 2 tier 3 materia to. Also, quests run out eventually, especially for second (and third, etc.) jobs to level up in. There also needs to be a source for making weapons to convert into materia after spiritbonding. Which is where the other crafts come into play. Then there's alchemist and culinarian (though not enough people actually use potions and food since it's hardly necessary).

I'm not denying that are problems (there's tons of them) but I wouldn't go as far as saying that crafting is completely useless.

I would. The recipe requiring melding to get AF? Stopgap.