One thing is, babies very gradually get harder in exactly the way you describe! Like, at first by default they breastfeed, and don’t have teeth, which is at the very least highly instinctive to learn. Then they eat a tiiiny bit of solid food, like a bite or two once a day, to train you. So you have gotten way stronger at “baby eating challenges” by the time the baby can e.g. throw food. Likewise they’ll very rarely try to put stuff in their mouths early on, then really gradually more and more, so you hone that instinct too. Even diapers don’t smell bad the first couple of months! Hard to overestimate the effects of the extremely instinct compliant learning curve.
One thing is, babies very gradually get harder in exactly the way you describe! Like, at first by default they breastfeed, and don’t have teeth, which is at the very least highly instinctive to learn. Then they eat a tiiiny bit of solid food, like a bite or two once a day, to train you. So you have gotten way stronger at “baby eating challenges” by the time the baby can e.g. throw food. Likewise they’ll very rarely try to put stuff in their mouths early on, then really gradually more and more, so you hone that instinct too. Even diapers don’t smell bad the first couple of months! Hard to overestimate the effects of the extremely instinct compliant learning curve.