Responding due to disagreeing with. Child's seat is safest to keep rear facing till 2-3 years old, no reason to turn it early at all. Learning to swim should start early to decrease drowning risk. I have seen 9-15 month old swim really well unassisted, took work to get them there but even teaching a baby to float is better than nothing. Most of this list is just thrown together and very arbitrary
Baby Tips: The chart above is one of those “arbitrary” charts that I said not to compare your baby to. This is only here to give you some idea of how your baby’s first year might develop. Remember, every baby does these things at his own pace.