Talking to people about bitcoin totally remind me times in mid 90. when I was having the same type conversation about potential of Internet.
At that time when internet access was limited, people were linked to global network via modems and www was in its infancy stage
There were barely any services available for people which would justify having an internet connection at that time.
Bitcoin is the same as internet back then, it will evolve, and in the future no one will be laughing at you. Just wait for it.
Good point. It was VERY difficult to explain the Internet back then.