One of the problems I see with this (although I would like it myself) is, in fact, the multi-job system. I currently have 2 sets of gear, one for crafting (carpentry) and one for harvesting (botany), although I may go out and fish sometime. In FFXI it made sense to have gear limits, the only way to change jobs was to visit your MH where you could get stuff from Mhouse/Mlocker/MSafe, as well as /logout quickly to a mule after running to the delivery vendor to spend 10 minutes switching your RDM gear for your NIN gear. In 14 the principle is set around being able to switch classes at will, wherever you want, for whatever situation, so you are limited to 100 slots, which on Botany gets filled up very very very.... very quickly. Then switching to a crafting class which is (for instance) R20, but you need to make a sub item which requires Alchemy which is R10, switching to your ALC would leave you naked.
I can be out on my lumberjack getting logs, switch to carpenter and turn the logs into lumber, switch to something else to make something else, and I don't even need to switch clothes unless I really want to (because I need the stats). I can be out logging and decide I want to go fishing, my fishing isn't as high as my logging, by a long chalk, so I'd need to carry lower level fishing gear around with me too, it all adds up, all takes space in the old inventory, all adds to inconvenience.
With the current system I can pick up an R30 battle leve, an R30 botany leve and an R20 fishing leve (which in Ul'Dah would be the same area) without carrying around R30 CON/GLAD stuff and R30 botany stuff and R20 fishing stuff, the more stuff I *have* to carry, the less stuff I'm able to harvest (one piece of clothing = a stack of lumber I can't get), having played RDM I know the **** of a full inventory only too well, having to carry around several sets of clothing/weapons just for stats, it's not exactly fun, especially in a game with no transfer system so you pretty much have a hard cap of 300 items, you can't mule off the stuff you don't require.
A strange obsession, mine. But better to be addicted to smartphones and gismos than cocaine or ***, I suppose. Well, I don’t know, the result is the same after all, very little sleep, great expense and horrific mess everywhere.
-- Stephen Fry