It sounds like you are in a tough position hun.

I've never worked in day care, however I send my kids there, and I like to hope that they try to follow the routine I ask them to as best as possible, but meh, I am fairly chilled out as my day care ladies are awesome and I trust them all to do whats in my kids' best interest. (They always tell me what times the kids napped, ate, drank etc when I pick them up).

In saying that, is there another 'higher up' staff member you could discuss your concerns with? Maybe like stating the recommendation for babies to start with food is 6 mths, and is the mum aware of this, etc? Like is there a policy that states child care centres have to advise parents when their requests do not fall within recommended guidelines etc?