Should an Officer wear a Driver's Badge that was earned while he was Enlisted?

I wore every badge I earned because I was proud of my accomplishment. And I still do.

I would say no that when he was Enlisted times he now a officer and no I don't think that is appropriate

Why would he want to wear such a badge?

It used to be a custom that Officers didn't wear all the badges earned as enlisted.
And aside from CIB, EIB, ABN, AASLT, Pathfinder, Ranger, SF, and Flight Wings we had enough "Fruit Salad". Drivers Badges and the potential for rows of Expert Weapons badges seemed overkill for an officer whose job it was to lead soldiers, not drive trucks. (Not taking away anything from those whose job bit IS to drive trucks. Those folks are vital to the mission.)

If you’ve earned it, you can definitely wear it. I wore mine when enlisted, but chose not to when I became a Warrant. Like the reg says, authorized awards are worn at the option of the wearer.

In the Navy, all your enlisted qual badges (insignia) are worn when you become an officer.

Pardon my vernacular, what the fuck is a "Drivers Badge"? (Obviously I'm a Marine...)

I don't know what a driver's is but if you earn it. It's yours to wear.

you earn it, where it.

Yes, of course. Officer or enlisted, any award authorized should be proudly displayed on the uniform