Abstract
Most parents want to improve the lot of their children. Providing a safe environment, a healthful diet, a good education, exposure to diverse experiences are some of the more conventional means of enhancing the health and opportunities of children. Increasingly, parents or would‐be parents are being offered genetic means for enhancing their children's lives. To whichever means parents turn, the road to enhancement is paved with some deadly and not‐so‐deadly sins that all parents and social stewards ought to learn to avoid. They are calculativeness, overbearingness, shortsightedness, hasty judgment, and pessimism.