Explaining bitcoin to the newbies is really a difficult task and specially to those who are unaware of the Digital technology. Those who are having a little knowledge about the crypto world or the Digital technology are easy to tackle and to explain about the bitcoin.
Someone who is "unaware of the digital technology"? I am not sure I have encountered someone like that in my lifetime. Maybe you meant people who are not accustomed to digital technology? In this case, it is true, it is difficult to explain cryptocurrency to someone who does not use at least the basics of modern technology.