I love how you label them as a normal people. Truth be told, its a typical reaction for people to be afraid or reject something they don't know. The lack of understanding of the said token leads them in rejecting the idea, worse is cursing it.
Basically, this is the ignorance of the subject matter why most people are afraid of something. If they will start educating themselves, they will learn more and so they will understand the true nature of it. And I guess, they will be the one endorsing it to their family and friends once they get acquainted with bitcoin or crypto. If they will try at least one bitcoin transaction, I bet, they will change their mindset. Sometimes, it is only in their heads why they reacting for something they don't know of.