I agree with you that investors need to have source of income before they can approach the market to buy bitcoin in the dip which is a good idea, make sure you use what you can afford to lose in bitcoin whenever you want to buy bitcoin and it will help you to focus on a long holding that will make you to earn good income from your holding, bitcoin is different from other business you can start today and start seeing instant result because there are some bearish season you will encounter in the process of holding bitcoin without be move to release your bitcoin no matter the challenge surrounding you because you have other source of income you can use to solve those challenges, but if you don't have such sources of income you will not overcome such challenges, this is the reason why is good to have source of income before going into long term holding.
How on earth is it possible to start investing today, and you start seeing instant results immediately, and I think at some point it’s quite alarming how people who are starting to invest in bitcoin would actually feel considering that you’re letting them know they could have start seeing instant results and they end up not having that much results, that could be misleading and discouraging, the most crucial part is just letting we plebs and newbie how to make investment decisions by staying consistent and having a strategy that makes us comfortable to keep buying and accumulating Bitcoin.
You don’t really require different sources of income to invest in bitcoin and definitely we need a discretionary income, but you could do with other cashflow to increase your discretionary income, probably increase your level of accumulation.