J.S.
I never bothered with toddler formula although I wanted to for my middle daughter who has Autism, and here's why. She has had such serious nutrition problems because of a restricted diet and because of Sensory Processing Disorder that she wouldn't eat a typical diet as a toddler. I couldn't breastfeed her because she hated skin on skin contact and she had (and still has) many gastric problems to boot. She didn't get the toddler formula because of lactose intolerance, and I couldn't even use the Pediasure for her. I would have loved this option for a child who desperately needed the nutrition and would have accepted it in this form.
What I dislike about questions such as these is the Mommier-Than-Thou attitude that if a mother gives her child formula that she must not love her child as much as a mother who doesn't give her child formula. It's not about "doing something to your child" but doing the best you can with what you have. Be careful who you judge because you have no clue what their situation may be and what's really going on. Even my own situation is much more complex than what I've shared here.
And I'm sure there's something in your parenting background that I could judge you just as harshly for and ask you what in the hell you were thinking when you decided to go ahead and do it. But we're all mothers here and it's not about accusing each other, is it. It's about information sharing and seeing how others parent so that we can find a new way of understanding.