My GF started leveling crafting and gathering starting from level 1 on most of these jobs, so going all the way to 50 at least to start doing collectables can take a lot of leves and once you run out you can't really level crafts and gathers until they recharge.
this really makes starting crafting feel like some cheap facebook game where you have to wait until your energy to come back before you can do things again. and with a low recharge rate once you run out it takes forever for them to get high enough to start leveling properly again. Also the lack there of crafting quest or just alternate leveling routes pre-level 50 makes this part a complete mess
So I think the best course of action is to do away with the allowances completely