It also depends under whom they have trained.
My idea is that training, in the dimension that I'm discussing, should have three levels: Paired kata at one end, a minimal-rules-set sparring at the other, and an intermediate-resistance "active kata" and "active free roll" (free to think about and experiment with escapes, reversals, variations) in the middle.
When I was teaching aikido, I didn't think that sparring in that context was ideal. I was working toward a more free form of randori, but I was transferred to another location and no longer trained in aikido.
When teaching, what I was able to push, and did so aggressively, was that intermediate stage. I called it "active uke". Some people caught on quickly, some did not. That's the way of things. It takes time to establish a culture.
I don't agree with everything in this: http://www.straightblastgym.com/aliveness101.html
, but I think that it is very worthwhile reading. YMMV.