The idea behind the blockchain being applied to transactions revolve around every time being subjected to a public ledger, which can be seen in the internet.
For example, in the supermarket every product comes with a label with a scannable QIR code. In that QIR code contains all the information of that said product including where it came from, its origin, and all the necessary details which are relevant. Again, the very idea stems from the transparency of information on the market.
From the example above, people would be more inclined to purchase products given that all information about the said product are unalterable (which is reflected on the blockchain). This can potentially boost the economy in the long-run and eliminate the doubts and ambiguities we have.
Blockchain is already on, and the level that we have advanced in the internet world is enough to make blockchain succeed, it is not a solution that has to be for everyone, and that is why it should also be optional so that those that do not have solution of internet can use it in the other way round.
The world is getting more and more corrupt and being destroyed, all our systems are just the way they are, and we are all confused on some certain technologies and how they should function properly for us, in this aspect of blockchain, the internet is actually not the issue that should delayed the implementation, but the issue is the knowledge of it, many people dont really have the advanced knowledge of blockchain technology and that is why it seems like we are not growing in it.