I personally do take puppies out and about right from the start in the car and in general areas. I simply carry them in public places so they get used to the sounds and sights, once the final shots are done I remove all limitations.
Jasmine - Female Miniature Poodle - born Aug 15, 2010
Loker Delgado Von Stalworth - Male GSD - born Jan 26, 2012
Koda & Zazu - 6 year old male cats
Alex - Male Cocker Spaniel (rescue) - RIP Cuddlebug 2007-2010