While GPS and online driving directions will eventually get you to where you're going, it won't will give you the sort of local knowledge needed to get there quickly (even if it does, someday, explain which lane you want to be in at intersections around here ;P). That skill is still very well used by ambulance drivers and the like, and furthermore is obviously a needed skill to anyone who tries to get around here. So I'm not worried about the skillset atrophying in those who need it.