Earning a living is possible with the bitcoin because you can gain a lot of money with the bitcoin itself, the only thing you have to do is investing in the Bitcoin and hold it.
I must say you have to spend a lot because otherwise, you would not gain a lot of profit to earn a living from it.
I think so too. The Bitcoin is good to invest for the long term. But we have to live today. Therefore, if there is a lot of Bitcoin, the profit from it is minimal. For example, to trade cryptocurrency need initial capital