I am glad you have found us all quite interesting!
Yes, I would be FURIOUS if my caregiver decided to by-pass my instructions! B/c I am her employer and pay her! I think it's best to keep your emotions and opinions separate from your job. And, it's a tricky job you got, cos there are babies involved. I admire you though for trying to educate the baby's parents, but be careful how you 'walk' it. Cos, you don't want to lose your job, they need to be trusting you.
Anyway, good luck to you