(...)
As of January of last year, only around 5% of people in the US owned some form of cryptocurrency, and things haven't changed much since then (
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). Another poll of US investors active in the stock market (over $10,000 in stocks and the like) showed that most of them don't trust it (75% said it was "very risky"), and only around 2% of them actually owned any cryptocurrencies (
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).
The problem with bitcoin is that it's too volatile (e.g. the current price is about 1/3rd of what it was last year -
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) and it lacks the regulations that you'd find in the stock market, such as those which prevent price manipulation, which contributes to that volatility. Until they figure out a way to regulate themselves, or allow themselves to be regulated, the people who use it will likely only be a small portion of the population.
Depending on a small portion of the population to support you with a volatile and unregulated currency sounds like a recipe for disaster to me.