“Work done with the camera may be considered good drawing from a precision standpoint, but not from an artistic viewpoint. The inaccuracy resulting from artistic leeway, aesthetic taste, and judgment is what determines quality and drawing and fine art” -Edgar Payne, “Composition of Outdoor Painting”
I think this quote does a good job selling the act of drawing over tracing or projecting.
I used to chase precision, but that only got me so far. There is so much that can be done with drawing, even imprecise drawings. The rhythms and connections that can be made regardless of precocious are what bring life to an artwork.