A baby doesn’t learn concepts by repeating words over and certainly knows what a mother is before it has any label or language to articulate the concept. The label gets associated with the concept later and is not purely by parroting and indeed excessive parroting normally indicates speech development issues.
All a NAS is is a separation of concerns, if you build a system who’s only job is to provide networked storage, then that system is a NAS. If you buy an off the shelf “NAS” and proceed to run a bunch of services on it, that is a home server, not a NAS. Build your own NAS and most of your concerns go away.