How do you think what section is affinity with blockchain?

Japanese government publishedthe use case and how impact to society of blockchain in 2016.
It is explained as below.

Use case1: Distribution of value, pointization Infrastructure of the platform : Market size 1 trillion yen(Approximately $8.885B)
Use case2: Decentralized authorization of rights certification act : Market size 1 trillion yen(Approximately $8.885B)
Use case3: Zero idle asset, realization of high efficiency sharing : Market size 13 trillion yen(Approximately $115.505B)
Use case4: Realization of Open · High efficiency · Reliable supply chain : Market size 32 trillion yen(Approximately $284.32B)
Use case5: Realization of automation and high efficiency of transactions and processes : Market size 20 trillion yen(Approximately $177.7B)

How do you think what section has the best affinity with blockchain and will adopt blockchain in first?

I think "Decentralized authorization of rights certification act" field is the highest affinity with blockchain,
but the first section it will adopt in our life is "Distribution of value, pointization Infrastructure of the platform"

Regarding decentralization of rights certification acts, current registration and other administrative procedures is very complicated,
and the counter depends on the procedure and it is very inconvenient.
I think it can achieve considerable efficiency by recording this on a blockchain which can not be falsified and making it possible to refer to the necessary information by following the appropriate procedure.