We had this in FFXI. Idk why the devs are insistent on removing every form of depth and complexity from jobs in FFXIV. In FFXI you individually leveled every weapon. Every job had different proficiency caps with weapons and every job had access to weapon skills based on proficiency with the weapon while some weapon skills were unique to certain jobs. A Ninja could evasion tank or be a DPS. A DRK with the Apocalypse (relic scythe) could straight up tank things because of the unique weapon skill that the Apocalypse gave even though DRK was a hybrid melee/magic DPS job. The removal of the RPG fantasy aspects from FFXIV is slowly killing the game because most people who play these kinds of games dont want to be treated like a toddler who needs their handheld every single second.