FULL TITLE: Children have a stable home environment and perform better at school if their biological father lives with them (but the same benefits do not apply when a stepfather moves in) Children are healthier and more likely to grow up with a good education and get a good job if their biological father lives with them, research reveals. But when a stepfather moves into a family home there are no benefits for the children, the pioneering study of British families found. The warning over the failure of stepfathers to help the families they bring up was drawn from records...