Well, earning a living with Bitcoin is actually possible, but living with a job seems to be the best option. At least Bitcoin can be, at the time, considered as a secondary source, being able to make the life more comfortable.
But for me earning a living with bitcoin is more satisfied as with that I am earning more money than my normal job, before joining bitcoin my normal earning was much lower and I was unable to fulfill my needs but now I am earning much better.
it is right that bitcoin can give you more income than your day job. but keep it in our mind that bitcoin income is not fixed. some time it can give you good income but some time it may not give you any profit even you will bare lost, so if you are support your family then you will find it hard to manage your expenses in these days.