Dirk Hanss wrote:
The major reason to take ukemi voluntarily (if the technique is done sufficiently good for the level of nage)is that many novices tend to use force, if the technique does not work, and if they are strong enough, it works, though rather badly. So the next time,they use more force. And thus some create strong techniques, that only work, until uke is stronger.
That's a great point and very well said.