What is the reason that only married women with children are taken as surrogates?
A married woman, who has completed her family would be the right choice for being a surrogate mother. The main reason for this is that the married woman has got a family and children, to whom she can return immediately after delivery of the child. Moreover, an experienced mother will find it easier to let go a child born to her than a first timer, as she can return to her own children.