Know-how versus common technology

Looking trough the blogs of foreign reenactors I find that most of sewing ladies use dummies. Not many of my friends do the same, although they make well-fitting dresses.
I find it to be a remarkable sign of difference between practical approach to hobbies here and there: european, or american, or australian girl, experiencing her sewing and reenactment hobby, makes sure she has all necessary equipment and tools, while her CIS colleague sees no way but to make what she wants from and with what she has. The cause of this amusing difference is obvious, and so more funny for me is that having capability to equip myself with dummies and other special devices I use old scissors and a corset filled with pillow.