Why do trainers swear by maps?

Ill always have an up to date moter carriers atlas in my truck .
A GPS is just a mere suggestion to me along with Google and Qualcomm directions and I compare all 3 .
Had a drop in old Chicago yesterday in an area I'm familiar with but got 3 different routes .
I trusted none and got a hold of a Chicago ttr friend and verified things .
Moral is trust nothing but your friends unless you know better or keep your eyes open .

 

Ahh the good old days of the payphone. When I was a kid in the late 80s early 90s I remember calling collect. "Please record your name after the tone" then the recording would play to the person I'm calling " do you accept the charges from... Yo it's me pick me up at 6 I'll be waiting outside don't accept the charges!"
And using those 2cent a minute phone cards to call my girlfriend. Having phone sex was rough back in the day with people walking by all the time.

 

Good up to date directions from customers would sure help.