we can make more money by investing the money we get from bitcoin in to other things like starting your own bar or company or restaurant that way we will have income form there and you will be the boss of that company.
We can't totally depend on bitcoin alone, still we find another ways just to earn money aside from bitcoin. Just like what you said,is a great ideas but you must have plan it well so it will succeed. In addition with that, is just to manage our self in spending more than the money that is coming in our wallet and if you controlled then you can save more.