We break (1" pine and roofing tiles) to demonstrate focus, technique and power - although power is definitely last in line. I have a father and daughter in my class - he's 5'11", and she's 4'11", and I'm much more impressed when she breaks than when he does, because her breaks are all technique, and his are power based on his greater height, weight, and musculature.
Boards don't break back, true - but they do let you see what you can do against an ideal (non-moving, perfectly aligned) target. Also, once you get past the basics, it's fun to play around with it.
Boards don't break back, true - but they do let you see what you can do against an ideal (non-moving, perfectly aligned) target. Also, once you get past the basics, it's fun to play around with it.