Can a single character be proficient in both their adventure and crafting school?

Yes, it just takes twice as long because you are dividing your focus. Like my warrior on Spirit is in the upper reaches of the player ratings because he hasn’t messed around with any tradeskills. I just buy my stuff off of the consigners. Now the Cleric Scholar I use to have was about half the rating of my warrior, but that’s Ok because making spells is just plain cool. I think my next focus will be in alchemy because posting special potions on the consigners seems to be really cool as well.