"Look at all these people getting rich without any work, you can too! Just buy this convenient financial product I happen to be selling!"
I'd have hoped the mania would die out once the supply of people with technical skills was exhausted, but it looks like people are hard at work extending the bottom of the pyramid to cover the usual victims.
People with common sense? Governments (the institutions that get to use guns and jails and make laws) will not let their control of currency slide out from under them. Blockchains are cool and fun and applicable, but I can't see crypto-currency-as-money becoming mainstream. Even if it does the governments of the world will not adopt Bitcoin, they would make their own.
Much more likely it will be outlawed or go the way of the beanie baby. Optimistically it could remain as a financial instrument on some sort, but IMO the only reason people value btc at all is because they think it will "go mainstream". When this doesn't happen either by legislation or force the value will disappear, and with that its utility will as well.
Seems to be winning in China. I'm sure other countries with strict capital controls will experience similar things.
Joe will probably be the last one to join the crypto takeover - but he'll still have exposure via pension funds and ETFs.
I think governments portraying crypto as being for "criminals" is the equivalent of marketing a truck as "military strength".
What if they aren't such a good thing?
How about the fact that paying with something like Bitcoin is (energy) inefficient, inconvenient and slow?
Because at the end of the day, privacy is nowhere near as important to many people are it arguably should be, and trying to market cryptocurrencies as 'independent from government control' is likely a losing proposition.
Same with most of the reasons involved I've seen invoked for why to use Bitcoin or the likes online. They're logical, but they're also likely to fly straight over the heads of most of the population.
Add the deliberate way that governments and the media try and portray cryptocurrencies as being used for 'criminal' purposes (which has given these currencies a bit of an image problem), and you've got something that seems very unlikely to ever truly go mainstream.