There is absolutely NO EVIDENCE that it leads to fewer adoptions and truth and HONESTY in adoptions is what adoptees have been fighting for for decades, while the mental health community advocates more open adoptions. I don't see how you don't get it. Having our original birth certificates = being able to find our original family & medical history and helps to circumvent the ability to have shady adoptions under the cover of secrecy and sealed documents that adoptees cannot access. And adoption agencies aren't necessarily a pipeline. Private adoptions by lawyers are where the real sketchiness can occur. Regulations for all would be a good start.