We all have a choice. Parents have to choose for their children.
If you want to rely on an authority figure you can go to your doctor and do all he says without question. Doctors aren't without merit but they have limited, often flawed knowledge and can't all be trusted.
The world ain't perfect and those who can't decide for themselves or understand the complex world they live in with all it's risks can suffer at the hands of those that they put their trust in.
Thankfully Curezone and some other good sites are a sourse of information that can be used by those who can think for themselves