Don't just look at the positive side of things.
Many people do not believe in Bitcoin because they have lost their money in Bitcoin.
if it is compared to this, it is like they know what school is and what it is for, they want to go to school and have an academic degree but they don't want to go through the learning process and don't want to take the time.
this is also the same as they know about bitcoin, they want to benefit from bitcoin (eg get rich) but they are too lazy to follow the existing process and they don't want to wait too long because their expectations if investing in bitcoin will profit only to the extent that they don't think about and learn about all the ins and outs in bitcoin.
so learning to understand about crypto is just lazy but wants to join in making a profit, so no matter how hard you want it, it won't happen.
so it's natural for them to lose their money because they are just going along with the hype.
but it will be a different story if they participate in forums like bitcointalk and look for more information from other sources and at least learn analytical techniques, even though it is not too perfect but with a basis then the results will certainly be different and of course the effort will not vain.