More About Dr. John Money
Much of the criticism of Dr. Money centers around the case of David Reimer. When Reimer was an infant, he lost his penis to a botched circumcision. Dr. Money advised his parents to raise him as a girl. Reimer received surgery and hormone therapy. According to accounts he gave as an adult, Reimer also had therapy with Dr. Money where he and his twin brother were made to act out sexuality activities with David acting as the receiving partner in the name of developing a healthy gender identity. As an adult, David Reimer opted to live as a man and eventually took his own life, a tragedy his parents attributed to Dr. Money's methodology.
This case is often cited in the argument against assigning a gender to intersex babies. Money, whose own views on gender changed over the years, was said to be mortified by this case in his later years.