The market for surrogacy does not involve the buying and selling of children, but the sale of gestational labour. Surrogacy is not carried out because of a desire to create a genetically 'perfect' child, but because of a desire for a couple to have a child of their own that is related to at least one parent.
Technical fertility innovations have all moved from being controversial to increasingly accepted over time, from sperm donation, to in-vitro-fertilisation (IVF), egg donation and gestational surrogacy.
Surrogacy may also use donor sperm in which case the intended parents have no biological relationship to the baby or babies. There may be multiple surrogates, fathers, mothers, donors, and babies. It can get very complicated. Surrogacy exposes parenthood, not as a biological fact, but as a legally and socially constructed status with responsibilities and obligations as well as benefits