Any neoprene-type bootie will work, diving or fishing. Unless you need to wade through muck to transition between open water and land, a gravel guard (found in fishing booties, but not dive booties) is NOT necessary. Regardless, neoprene booties will be pretty warm when driving to/from. Just change into sandals or something more comfortable on the drive.
I am a big fan of wearing booties and shorts in my pontoon boat in summer. However, if the lake/pond that you are fishing has abundant populations of ducks/geese and freshwater snails, you might have develop a skin problem called swimmer's itch (cercarial dermatitis). This is caused by the cercarial larval of schistosome (fluke) parasites. The larvae cannot successfully burrow into the blood supply of humans (though there are tropical schistosomes that do infect humans). The larvae die trying in humans and their corpses trigger an allergic skin reaction that feels like the worst mosquito bites that you even had. The injuries heal up after a few days.
Schistosome flukes have a multistage life history. Infected birds release fertilized eggs in their feces in the lake. Miracidia larvae hatch from the eggs and infect snails. The snails release swimming cercarial parasites that seek out warm-bodies flesh, like the legs of a duck (or a human). The cercariae attempt to burrow into the skin; if successful, they migrate through blood vessels to the liver, intestines, or other organs.
In some lakes swimmer's itch is a problem and in others it is not. If I have had a bad prior experience at a particular lake, I will wear my stocking-food breathable waders just to prevent a reoccurrence.
Steve