I'm not actually do it right now, but I hope I can do it in the next future. It would be very cool for me by living with just Bitcoin for the income
Most people cannot do it now. The Bitcoin is not popular enough. It is not widely accepted in shops and services.
But I believe there are enough possibilities for everyone with freelancing, Captcha solving, signature campaign and faucet earning. If you are capable of doing better than bitcoin trading also has more possibilities for earning a living with bitcoin, but with this risk included.