I have been doing that in my environment but the only problem is that they still don't get how blockchain technology works therefore they compare crypto withponzi scheme.
You can explain them blockchain technology in simple way that it is an online network that works by solving mathematical equations. Then you should let them know what bitcoin is and how it eliminates the need for a third party interference.
They you should let them know what decentralization means and how cryptos provide security and privacy of information. Make them understand crypto world step by step, I am sure they will understand it.