Hope this can help
https://www.finextra.com/blogposting/12378/how-i-explained-blockchain-to-my-grandmother
Sorry, no help at all.
First, in what way is this system superior to the completely effortless way I now spend money, receive money, make transactions, and keep financial records?
Second, blockchain advocates often claim it will be much cheaper than banks and credit cards. My first thought - who is storing and verifying all this data for free, and why should I trust them?