Infant atatchment is distinct from "bonding" in terms of infant psychology.
An infant can "bond" with anyone.
Infants have an "attatchment" to their mother. The physical body that gestated and nourished them. Early separation has lifeling physical and mental health consequences. Attatchment theory is WIDELY accepted in medical and social care circles.... until a male gay couple or rich privilidged couple want a womb to rent then its ignored..
Thats why in postnatal psychosis, where the mother sometimes tries to kill the infant, they are taken in as inpatients together under close supervision while the mother is treated rather than separated temporarily, due to the long lasting damage to the child of early infant separation from their mothers.
How do you reconcile that with surogacy?