The web is a network application on the internet.
Blockchain is a network application on the internet.
After 13 years the total number of blockchain users is likely less than 100 million worldwide. From 1993-2006 the web grew to a billion users. In 1993 only 8% of US households had a computer with a modem…
Considering the web, mobile, and social media that blockchain has been able to leverage over the past 13 years it should have at least 20X the number of users.
Blockchain user adoption has been a complete failure up to this point.
I wrote a rant about this earlier this week:
https://blog.cryptostars.is/blockchain-the-most-poorly-adopt...
In terms of replacing the financial system - I've been active in this space for a while now. I've been to meetups, events, large confs, etc in addition to the usual online hangouts. The overwhelmingly majority of users interacting with the blockchain don't know or care about "replacing the financial system". You can tell because they can't go 10 seconds without referencing their investment in dollars (how much they made or lost) or "I 100x'd it" or whatever. There are a few true believers who think in terms of "replacing the financial system" but out the 13% of US households that have anything to do with crypto the vast majority of usage is speculative trading. The blockchain to them is just another ticker symbol someone told them about and they click around in a web interface to buy/sell/trade.
We have a historical example of a new and "innovative" consumer financial product - the credit card. The Diners Club Card was introduced in 1950. By 1970 51% of US households had one. I don't have to tell you that is pretty good adoption for a completely different time and era but when something is immediately and obviously useful people adopt it. Always have, always will.
Nobody was pushing the internet to the general public in the 1970s, and hardly anyone saw it as a technology to be used by them anyway. When the technology became cheap enough for the general public in the late 80s, then first did we see experiments aimed at the general users and we got stuff like IRC, email, etc. soon after.
Blockchain technology—in contrast—has been available to the public from day 1 and and so far the record is far poorer then that of the Internet in terms of usefulness.
To put it in perspective, when the internet was 7 years old, the world wide web didn't even really exist beyond a concept yet.