I admit that for ordinary people owning one full bitcoin in the future might become an unreachable goal, and for many people with modest income it has already become unreachable. That is why I think the more bitcoin grows in value in the future, the more boldly it can be called an asset for the wealthy. I mean owning an entire bitcoin, not just a small part of it.
People still say we don't need to own the full 1BTC and poor people can own bitcoin for just $10 or $20. That's true, but what's the benefit of owning just a few satoshis? And this will become even more meaningless when in the future the price of bitcoin reaches $500k or $1 million.
It is true that bitcoin was created for everyone but over time it is becoming an expensive investment/asset, not a currency. That means sooner or later, bitcoin will no longer be for the poor but only for the rich in the future.
You need to have as much as you can - be it 1 BTC or 50$ of it, it would still be good in the long run.
You use BTC for services, and many of them don't need that much of it..