None. Because not a single person I know in my city even invests in general. Just consumerism everywhere. Does that make certain assets such as gold and stocks a failure as well?
Good point. Adding to this, the regular Joe is manipulated by media that bitcoin is scamcoin and probably holds all his amount in a bank.
The regular Joe doesn't takes up the motive to read what bitcoin is all about.
I am pretty damn sure that if everybody in the world reads or knows what bitcoin actually is then they would rather consider holding bitcoin than holding money in banks.