A fertility law specialist says children born through surrogacy do just as well as "children created the usual heterosexual way."
The comment follows Pope Francis' state of the world speech during which he called for a universal ban on surrogate parenting, which he described as "deplorable."
He also said it's a "grave violation" of women and children's dignity and financial exploitation.
Surrogacy specialist Natalie Sutherland warns a universal ban won't stop surrogacy:
"I have no problem with surrogates getting paid, but what you need is a regulated system, rather than it being underground. Pope Francis is calling for a global ban on surrogacy. I don't think that's ever going to happen".