Most people try to make enough in spare time before they quit their job. Bitcoins are unstable they could fall over nite you might want to spread out your eggs in more then one basket.
well bitcoin is a kind of job by itself but bitcoin indeed can be a good source of income but it is also very important to have some proper job so we will be able to make more money and can make some relationship with bitcoin as well because today everything is very costly and we cannot rely on bitcoin only so we can earn through bitcoin in spare time only and it will make us less social but at least we will do something good for our family.