Re: Beginners should not be allowed to act as uke.
There is some perfect ratio of impressing noobs with the effectiveness of Aikido : killing them, but no one really knows what it is. Varies widely, depending on the martial-to-art ratio or "fluff factor" of your dojo. And the expectations of the student. Sometimes you get a little challenge, and a "brisk" response is what they actually want. Do that with the average pre-retiree and you have probably lost a practice partner.