There are some discussion that will be worth discussing or continuing, once the person who you're discussing with is no more interested, you as a person should know.
It is or will be difficult to convince someone who is not friendly to digital devices like smart phones or laptop to be interested about crypto currencies. Anyone who has no knowledge or interest about the internet cannot join the crypto community.
Everyone who makes use of the internet and digital devices is someone who will easily grasp the points of discussion. This kind of people will listen and make their own personal research (DYOR).
Financial freedom is something that everyone should be part of the discussion. At the point of discussing, it doesn't mean you'll need to convince them to jump in at once, rather, they should see a reason to call you back and ask more questions regarding it. This days the news of crypto currencies has gone viral, and anyone who is still fighting it, is one who will never be interested about crypto currencies.