The matter is not so simple. Sure there are risks in investing into a business and running it, yet I would think that the idea of investing into your own business as compared with working for someone else is so that you might be able to leverage your labor in such a way that you are able to increase your cashflow to be higher than it would be if you were working for someone else.
Sometimes people invest into a business and they do not increase their cashflow because the business is not generating enough income in order that they can make enough income so that they can buy bitcoin, for example. These ar not easy choices that guys will have since anyone planning to invest into bitcoin still needs some kind of income in order to be able to invest into bitcoin and/or not to have to cash out of their bitcoin at a time that is not of their convenience, since they are likely investing into bitcoin to build their bitcoin and to get their bitcoin stash to a high enough size. so that later down the road they might be able to start to live off of their bitcoin stash.
Yes it is not a simple matter, what I was saying was actually saving 10% of your income while working for someone, In the past there is this thing of looking for something to actually put the money into to generate more profit, in the past it will be savings in fiat currency because starting of business will be a little bit tricky with that small amount. But with bitcoin you can simply invest that 10% by DCAing for upto that some substantial time where your money would have grown to been enough to set up your preferred.
With this business now you can actually invest the income into bitcoin and grow your bitcoin holdings more. In the past this 10% income will have been left in fiat and been eaten up by inflation