Do any of you have a cut-off point(age-wise) when you stop accepting baby formula as the drink of choice versus milk? I have an almost 20 month old with no growth issues and no allergies that still comes with formula. I have to sterilize/measure/mix/measure amount drank/measure amount left etc and I don't have time to keep this up with my group of toddlers. I have suggested milk several times(which I provide) and they won't go for it. It's getting a little tedious for me.
Is it fair to ask a parent to discontinue formula at this age? Suggestions please???