Blockchain is simply a technology that controls transaction settings such that it doesn't create the idea of ​​any third party

Yes blockchain does all this but blockchain is not only about currencies. The crypto part is only one tiny part of blockchain.

Blockchain can be used to store data, can be used in the sports industry, entertainment industry, health sector and others.

Though the risk is very rare. Some of which are the loss of private keys and I never believed private keys could be lost not until I heard of an incidence of private key loss by an owner

Yes, which is why we are asked mostly not to have our private let’s saved at only one place but we should save our private keys at multiple places offline to prevent us from loosing our accounts.

peer-to-peer transactions which in turn

If someone has used the blockchain, I don’t think he will wanna go back to using the traditional system . This makes me not ever want to go to the bank but since we have not adapted blockchain In my country there is no way you won’t visit the bank .