In this [Çurl=https://river.com/learn/files/river-bitcoin-adoption-report-2025.pdf?ref=blog.river.com]report[/url],
only 3% of the world's population owns bitcoins. I'm not talking about companies and investment funds, of course. That's 240 million people as of 12/31/2024, some of them have only a few sats.
For comparison, Satoshi would have 4.6% of BTC and about 7.5% would be lost (estimate), a low estimate of 12% (while other estimates are around 28%).

There is quite a bit to read in this document, I have attached the table of contents.
It would be better to give an idea of what percentage of the 240 million users hold and what percentage regularly transact. This report shows that Bitcoin is still in its infancy. 3% usage is enough for me, although mainstream adoption is still a long way off. But in the next 2-3 years, adoption is expected to increase in binary format to this number. If only 3% of the world's population owns BTC, then just imagine how much the price can increase if it enters 10% later !! This could be an indication of Bitcoin's opportunity to become the "one word currency" of the future.