Why do people focus so much on owning any amount of Bitcoin?

I keep seeing the idea that even a very small amount of Bitcoin could matter in the long run.

Putting price aside, I’m more interested in why this framing resonates with people.

Is it mainly about Bitcoin’s fixed supply, its divisibility, or the idea of self custody and opting out of traditional systems?

Curious what aspects of Bitcoin make people think in terms of ownership rather than short-term value.