Oh sure, someone who's an expert may do it faster without a jig. But we don't need more expert bricklayers to lay 9 bricks a minute, we just need more bricklaye

Oh sure, someone who's an expert may do it faster without a jig. But we don't need more expert bricklayers to lay 9 bricks a minute, we just need more bricklayers. By using jigs you simplify the process and make it easier to perform by less experienced people, and make the process more reliable, which reduces waste, which increases efficiency, which brings down cost, and improves quality.