No real reason not to drive an original/restored truck as often as you want.
These trucks were new once and people drove them all the time anywhere they wanted to, and we can still do the same.
Upgrades and modifications may be nice but by no means are they necessary to drive and use these antique trucks.

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-