Yes for sure we need it because we can see now around us most of systems have become digital payments, in every shops I went last Sunday they were accepting digital money so, to live in this digital era we really need block chain, it keeps our bitcoins safe and we can send or get large amount of coins from one country to the other.
Really? Where do you live? I live in a country where it is quite advanced in the city and as well in the non urban areas. We have wifi everywhere we have mobile phones everywhere and smartphones even grandmothers use them to selfie all the time now. But if I go to the shop or take the bus or use a public phone, it's still all in cash my friend. All my digital money doesn't help me, what more to say blockchain?