Both are considered to be from a “you’re a child, you’re eating well” sentiment but also different from the first sound, like something from a younger, unnatural person – “I ate well when you were a child, but I don’t anymore” this is because being used to refers to something that happened before. Or though there is more to it.

I ate well as

a child…If I lived with my parents, how

did I love eating more since then?