Having a good source of income is important since our consistency in bitcoin investment strictly varies with our cash flow. So a good cash flow management is very important in our being able to keep up with our DCA strategy. However it is possible to be buying bitcoin while working on increasing or stabilising our cashflow. I believe it is possible to have a source of income without one having a discretionary income so it is very important we determine if we have discretionary income to invest with before thinking of starting .
Absolutely true. The key to accumulating BTC is a strong and consistent income in the real world. If your income isn't consistent and doesn't increase, your DCA will certainly be hampered. However, in my opinion, there are many ways to invest in BTC. We don't need to use the DCA system if we don't have a steady income. The most important thing is that when we have money we can afford to lose, we can buy BTC.
Having the desire to invest in BTC for the long term is certainly a good value. There are certainly quite a few wealthy people who aren't interested in investing in BTC. So, if you want to invest in BTC, buy BTC with money you can afford to lose and save it for the long term. The key is not to incur losses because of investing in BTC in the real world. Essentially, BTC is just a side business.