You could try analogies. People (not everyone though) understand stuff better with analogy. There are loads of Bitcoin analogies on the Internet.
If they still do not understand with analogy, help them create Bitcoin wallets and send few dollars worth of Bitcoin in the wallets. If the Bitcoin is worth more in the future, they may be motivated to learn about Bitcoin/Cryptocurreny and even invest more.
Yes cryptocurrency is so difficult to understand, that's why many newbies investor panic because they don't have enough knowledge with cryptocurrency. It is a long process to study with, and have enough time for searching.