I'm wondering!

[Rachael]

You don't have to do anything you don't want with your fees other than your contracted agreement.

I have a flat fee. It's the same regardless of age because ever age has extra needs. At 12 months, they are adjusting to being away from home and being encouraged to learn to walk. At two I am trying to extend their vocabulary and toilet train and teach them put on shoes and coats independently. At 3 I am teaching them their letters and numbers. At 4 they are eating way more than the little ones.

Some people charge more for infant care but unless you specified to this client that you were charging extra based on the needs of this infant when they joined, you aren't obligated to drop your rates when the next phase of development begins.

Are your client's asking you to drop your rate and if so, why do they think this should happen?