That is not going to happen, for the same reasons why most people don't dig their own wells, learn carpentry to make their own furniture, or weave their own cloth and learn how to tailor clothes.

Every complex enough system will always have centralized points, aka. gatekeepers. That is how human society self-organises.

>Every complex enough system will always have centralized points, aka. gatekeepers. That's where the problem is. 3rd partys have been introduced for security reasons but are nowadays far from it and that's what some people are actually fighting for. An autonomous system where the only pseudo 3rd party is an impartial public registry

Again: Most people will not use a more complex solution when a simpler one exists, regardless of whether the simpler solution requires a central authority. Example: People used to use IRC, which is a really easy to use system. Then along came chatrooms, and then centralized messenger systems. Sure, some people still use IRC, but they are not the majority.

> That's where the problem is. 3rd partys have been introduced for security reasons but are nowadays far from it and that's what some people are actually fighting for.

Which systems are "far from it"? The financial system? I get my paycheck every month, all payment processes work fine. The government systems? Elections in my country work flawlessly, tallied and protected by central authorities. The power grid? I haven't had an outage in 4 years, and the last one lasted all of 10 minutes. Public Transport in my country is affordable, well maintained and usually on time.

So it seems to me that centralized systems work just fine in the vast majority of cases.