Avis/Budget used to disallow retail underage rentals, and added a $35/day underage fee in many places after Hertz's coupon was introduced to at least pretend to be competitive. Hertz, Enterprise, and National/Alamo allowed it. Before the Hertz retail underage fee waivers, those others were thought to be the most friendly because one could select to add the fee at reservation booking time. Others have said that more corporate codes waive the underage fee with Hertz and National than Avis/Budget.