I remember how awkward it was to start using the shoulder strap of the seat belt in a vehicle. Many said they couldn't drive that way, it hurt their neck, it was too tight, it was made for tall people not short. But common sense took over and now it's automatic to buckle up. It's time for rotary cutter users to use a safety tool so beginner quilters, (like our children using seat belts ) will never know not to.