As someone who cuts fabric in a quilt shop, I have another perspective. The quilter always has a clearer idea in her head of what she is doing than I do as the person in front of her cutting fabric and not everyone can clearly express what they are doing. I just think it's bottom line the quilter's responsibility to figure out their yardage, at my shop we ALWAYS help people with that, but I do get frustrated with people who don't even attempt to learn how to figure out their yardage. Just another point of view.