Should all my characters have use DoH and gathering?

[REPROBEAN_CHILD]

I currently play with three characters and I divided the crafting and gathering classes between them.vThey each have 3 crafting classes (although one has 2) and they have one gathering class. This seemed fine at first, but things got complicated when i wanted to use glamor. I wanted one character to use glamor on ilvl 1 glasses, but i needed a Grade 1 goldsmith prism. This particular character doesnt use goldsmith and i didn't want the one who does to have the glasses. Prisms are sold in marketboard, but the prices are absurd, especially with 800 gil fees. The best option would be to have my goldsmith create the prism for the glasses-needing character to use and send it over. But of course, we can't do that. So then i thought that they should all use all crafting jobs, but it seems unnecessary to do that.

And yes, i know i can do everything with one character, but i didn't want to. My three already have a huge investment