However, in the context of a solo newbie trying to animate a realistic character, it's been my experience that opening up the camera view to include the full body length increases the difficulty dramatically. (I remarked on this concerning the rotoscoped cowboys).
This would provide plenty of incentive for framing the composition at higher than knee-height. And that's obviously a very common practice.
So my first question is: is the problem of full-body animation so much taken for granted that people don't remark on it?
My next question is: is it also true that opening up the view to a medium-shot/full-body composition is important for breaking the monotony and claustrophobia of a camera that's always in tight?
Should the additional body language of a full-body walk be viewed as a justification for going to all the extra work?
After all, I feel that if I just chucked it and restricted my efforts to a more tightly-framed shot, I could actually make some progress with this!
On the other hand, here's four key poses I have laboriously worked out for a full-body walk:

Wisdom would be welcome on this (including feedback on the poses).