What is the definition of crutch in this field?
I fiddle with hands all the time, click pens, tap feet, sometimes bounce foot to make the floor echo (not sure if that really counts, but it sounds nice, and feels nice). I rub my chin (only when I haven't shaved mind), bite my nails, lips, side of mouth, and rarely my tongue. I have strange skin, possibly Keratosis pilaris, and regularly find myself picking at my arms and legs. When thinking deeply or stressed I will chew my little finger Dr Evil style... and I am somewhat ashamed to say I also thumbsuck (I manage to only do it in private and immediate family though) at 20 (first time I've ever written that down...)!
Now for the spanner though - the thing is observing those around me, eveyone stims quite a lot, not having a dx it is perfectly feasable that I am AS, but I could also be NT - and going on what I have seen - I think its perfectly feasable to stim this amount (other than the thumb and picking arms) even as an NT - I welcome opinions on this though