You are contradicting yourself, You are forgetting something that DCA is buying bitcoin every week or month with consistency and persistently overtime without a break. Someone who is not financially stable will not be able to carry out DCA practice in his bitcoin accumulation journey. Don't forget that a stable source of income is needed for anyone that want to start his bitcoin investment, because you are only to be buying and building regularly for 4-10 years and above.
You might have a stable income but don't have discretionary income, such person will not be able to invest in bitcoin talkmore of someone without a stable income, because if you don't have a discretionary income and you end up buying bitcoin, you will sell it when you are broke because you must take care of your needs for survival. If you don't have a stable income, you will not be able to build an emergency funds that will sustain your bitcoin investment in the long term.
Investing in bitcoin is just like saving your extra money in the bank for long to achieve something of valuable to you but when you are not financially stable, which money will you save in the bank, instead your bank account will be zero. Same applies to bitcoin.
There’s difference between saving and investing actually but that’s not the purpose of this thread…
DCA doesn’t mean buying every week or month , it’s just picking a specific interval comfortable for you to invest could be a day, 2 days, 5, 1 week, 2 weeks….and more It depends on the investor to pick which is suitable for him/her, what really matter is consistency with the plan he/ she chases.
You don’t need a stable income to invest, why do you think strategy like DCA are been utilized by investors in the first place (flexibility),it helps with your investment journey… Normally,you invest to become financially stable , you don’t need to wait for stable income to invest in Bitcoin, start with the little and once it’s stable you can always increase your plans . Hence, with the discretionary income thingy, having breaks could help to keep everything balance(use those breaks to build your emergency funds & likes ) and then once it balanced you can always resume… the subject is investment is not an easy thing(remember that) as I said earlier, it’s just your mindset, once you’re determined you will see the results(it’s not always now but future tells).