When you are learning both photography and pp at the same time, it might get overwhelming and frustrating sometimes. I find that with good lens you will get very close to that perfect photo that you've in mind, but might need some pp like increasing contrast, boosting colors, cropping, etc.
As you get better at photography like composing for example, you will spend less time cropping in pp.. or of you learn to get the right exposure, you might spend less time boosting contrast and colors.. but to be a purist and have perfect photos SOOC all the time is tough.. everyone might do some lvl of pp depending on the expected final result and interest in pp..
If you are just starting out learning photography and pp, I'd suggest to stick to basics and aim for getting good quality pics SOOC..
This was a discussion I had some time back and got some great points from members who replied, might help to read through..
How do you define photography?