There is a common cultural idea/social construction that in order to prepare baby for a separation (starting daycare, getting ready for a new sibling, etc.) we need to first induce separation. In fact the opposite is true. The more that a child’s connection cup is full before a change or separation, the more secure they’ll feel, and the easier it will be

There’s plenty you can do to make the transition to day care easier on everyone, no “habit” breaking necessary. In fact we encourage you to keep feeding to sleep as a tool in your toolbox, it will make nighttime during this transition period so much easier.

Sleep Trainers love to scare parents with claims that cat naps are bad for babies development, that they must be sleeping for longer stretches or dire consequences will occur.
Thing is, it’s just not true.