It derives from the pet name Atkin, which is a diminutive of Adam. In Scotland the name is more usually rendered as Acheson, while it is more usually found rendered as Atkinson in England, where it is particularly common in the north.
By the time babies are between 9 and 12 months old, they're often ready to make the switch from bottle to cup. At this age, they're more interested in what's going on around them than they are in sucking on a breast or bottle. But phasing out the bottle this early means planning ahead. Here are some tips:
Many parents just take a 'cold turkey' approach and simply change all of their cups or bottles to whole milk once their infant is twelve months old. This often works if you have an easy going baby that adapts well to change. Only giving juice in a cup, and not in a bottle, can make this easier to do.