Actually, all digital files need pp of some sort - it's the darkroom.
Yes, you need to get the information (photo) correct, but "out of camera" is a bit of a myth really. Especially shooting RAW. If you shoot RAW and do nothing, then there's no point to shoot RAW. Kinda like shooting film/slides and taking it to the mini-mart. jpeg to some extent is the same way.
PP as I discuss it isn't fixing a bad photo so much as finishing the product you saw in your mind's eye. You've got to have the goods to make PP worthwhile and effective. It's an essential part of the process - just like lens choice, ISO choice, aperture choice etc on down the line.
Again, a good book, course, web site or mentor that explains it so you understand what your camera is doing and what your software is doing is invaluable.
If you want to do tricksy things with PP there are tons of books out there for that, too. That is beyond the basics - and you still have to have the base image to work with.
There's nothing better than actually taking photos, though. So shoot every day - anything, something.
You've got to have all the pieces of this puzzle working together or nothing will save the image

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...pretend than post-processing was never invented. This way the aspiring photographer would have to apply his or her skills in achieving a very sharp, well-exposed, correctly composed photograph. Post-processing will only act as a barrier or handicap to your final goal of sound photographic knowledge.
I personally think this is bunk. It assumes that just because you're shooting digital you don't care about the fundamentals and that's not a very accurate blanket statement in a thread asking for help on learning photography! Clearly the OP wants to learn. Ignoring PP with digital is like shooting the roll of film and sticking it back in the canister.
There will always be those out there that are happy snappers - film or digital - who don't want to know, and that's just fine, too, but I think the OP isn't in that category.