Why? This is easily accessible to anyone. The only thing you can’t do, is say I’m going to shave 5 times and be done, just give the blade a chance. If it gives up on the 5th shave, so be it. Grab another, and try for 6 or seven. Learn how to push your blades. I’m not expecting everyone to make it the full month on one single blade. That's not the point here.