Well, I am not 80 but am closer than I want to be. One of the things that come with age is what we like to consider wisdom. Unfortunately, it is easily confused with opinion which we feel the need to share with everyone in case they miss the opportunity for our "wisdom". One of the great things about quilting is that it is yours. What you do, how you do it and why you do it is up to you. If you sew straight, match seams and end up with straight sides it is right and yours to do with as you please.