ThunderingBear said: some, not all, crafting skills should not be based on character level.
The actual algorithms for Crafting skill are not fully implemented yet so having adventuring level be the limiting factor is just a stopgap measure until they are.
Once that process gets finished - "within a few months" is the last we heard from the Crafting Dev - then adventure level will no longer affect Crafting. You'll be able to level as far as you wish on a level 1 character.
Not to ignore the fact that it is intended for some aspects of high level Crafting to require a Crafter to travel to many places in the world, some of which will be extremely difficult, dangerous and potentially impossible to enter if they are still at newbie adventure levels.