The time to tell people what exactly crypto is already passed away. Here is why :

People think that crypto world is money making machine. You can always earn money with it, set up your financial needs through it.

They have bound their thinking with money and crypto in very much like-like magnet energy! They dont understand the unexplored world of blockchain. Blockchain is far bigger stage than we think and people are not seeing at it as advance tech but when it comes to it then they just know money and money!
We need to change their perspective first then we can think about teaching them.