I understand, and I'm not saying it's a bad idea, but I think it would take away from this game in particular.
The maps aren't that big and if you take time to read the quests they let you know where to go.
Kinda like paying your dues and learning to read the map and finding where certain mobs are.
Not to mention you may miss a few mini bosses while your toon is auto routing and yer in the kitchen makin a sandwich. =)