NO, the only thing you can rely on would be a solid set of skills or physical effort you put into something that turns into a value which you can use to eat/ feed your family, counting on any form of business is risky, mining is just another form of business that is a lot riskier than most other businesses out there, your revenue could drop by 80% in a few months, the whole farm can go on fire, everything can happen, treat mining is an extra/side income and only risk what you can afford to lose, do not treat it as a business that you will pass onto your kids, it won't happen.