I''m all for ERFing. But for those who think a CCP should enforce "my car, my rules" -- would you be okay with that attitude in other areas? I wouldn't be. I wouldn't hire a CCP with that attitude.
I've done a fair bit of nannying work. One of my rules is no processed foods. I've never had a parent complain about that. Ever. Even when I was interviewing for a nanny/housekeeper position (which I had to turn down).
I HAVE transported children, though generally in their parents' cars. When it's been in my own vehicle, however, I've never had a parent complain about 'my car, my rules.' Of course, I've always been very upfront and explained why my rules are what they are.
For something like rear facing vs. forward facing, as much as anything, it's a matter of liability. Even if you have no formal contract, you can be held liable any time you transport someone else's child. If there was an accident, heaven forbid, and a child was forward facing that could have been rear-facing and the child sustained injuries like little Joel did, the potential exists for you to be held liable for not doing everything in your power to keep the child safe. That's why, for example, Scouts Canada (I'm a cub leader) tells leaders not to transport children in lap belts when we're trained--the liability is an issue, even if the lap belt is 'legal'. I know that, after reading about Joel, if I can find a rear-face carseat for any child that I'm looking after? That kid fits, he or she is riding rear facing, for my own peace of mind both about their safety and my liability. I'll never forward face ANY child that I can rear-face, after reading that.