It is good when you have a group of students of mixed ages and abilities, they asked searching questions and the whole group benefits exploring the reasons that we reached general conclusions over the centuries. But what you don't need within the group is a four year old that keeps asking WHY? When the rest of the group has moved on.
I take on board your comments
"Your "customer base" is what you choose it to be. It seems that a lot of our cautious arts n crafts followers end up having to teach, or desperately sell people tools they don't really need."
What I need to do is let the students go through the long learning curve of self-discovery of what may be good or poor construction and advise them the will need to purchase a range of Dovetail templates to suit the various angle available and a set of different sized skew and Fishtail chisels. This may well be advantageous to both parties, or I may stick to my advice based on my past mistakes, experience and ill-advised tool purchases. :mrgreen: