You have confused me?
Nutshell version:
Increased protein intake is a good idea relative to the "normal" diet most untrained individuals follow. How much protein is needed? There are too many variables to answer that question accurately. I recommend 1-2g total protein intake (from foods, fluids, and supplements).
Think of it this way, the biggest and strongest men and women in the world almost invariably supplement with protein and feel it aids their training results.
The decision is yours. Drinking shakes in lieu of foods is fine so long as you still consume at least a few meals per day.