It would be hard for me to depend on bitcoin earnings alone, as this has the tendency to vary from month to month or even week after week. Many of us are after stability, so we try to look for a source of income that will give us stable earnings on a consistent basis. Although my day time job can be stressful at times, I just can't give it up because I have been doing it for many years. If the time comes that bitcoin becomes stable and more opportunities are available, I might go full time into it, but for now, having a job and earning with bitcoin is the way to go for me.
Well it's indeed good to focus on btc to earn more on it,as long as we learn how to do it,example having campaigns, managing to join on each twitter,articles or video can be a good source of income. Thougg it's .ot stable yet with trading it can be enough.