Defaults are decisions somebody already made
Defaults feel neutral because they arrive before we have formed a preference. They are already selected, already working, and usually good enough to leave alone.
That does not make them natural. It only means the decision happened somewhere else.
Convenience has a direction
A default decides which path carries no friction. Over time, that path gathers more users, more documentation, and more assumptions built on top of it.
The effect is rarely dramatic in a single moment. It becomes visible when an entire system begins to lean in the same direction.
Notice before replacing
Questioning a default does not mean changing every setting. It means understanding what the existing choice optimises for and whether those priorities match the work in front of you.
Sometimes the default is exactly right. The difference is that you now know why you kept it.