Hi
My husband and I adopted both our children through Child Welfare so that is the process I am personally experienced in. However, many of our friends have adopted through private social workers such as Procare etc. so I do know about that too.
AS far as choosing a social worker/agency is concerned, it's a matter of personal preference. I would speak to people who have adopted throgh various agencies and hear their experiences. It also depends on your own circumstances such as if you're married, your religion, your income bracket and your expectations which route would be best for you.
I believe it is impossible to divorce emotion from this decision. I wonder what the context was in which that advice was offered.
Where do you live? I'm assuming Cape Town if you are considering ProCare. If you want to Spaces me, we can chat. My blog name is Luddite Lass.