Yea, but it might be difficult when you don't plan and prepare yourself on how much you should use to DCA regularly that will not affect your income to take care of your responsibilities and emergency funds. This is why proper preparation is needed because it is a long term investment and you need to keep on increasing it regular so that it can grow because it wouldn't be nice for you to remain stagnant with your bitcoin investment.  The more you DCA the better chance that you will have to get rid of the risk and increase you bitcoin with timeline.

This is why you must figure out the right percentage from your income that will be perfect for regular DCA based on how much cash inflow that you do have weekly or monthly. Every investors regular DCA amount differ from each other because figuring out how much you will use for DCA is a personal decision since it is only you that know how much income you do have monthly, what matters is that you should be consistent with it.

This is why 10% is very cool because no matter whatever financial circumstances that come your way you will be able to tackle it and it shouldn't be that you have little cash reserve that will not be enough to take care of the financial circumstances that will make you to go and sell when it is not at your will. If from the look of things 10% is too big, then you can cut it down to 5%, in order to meet up with your long term goal on your bitcoin journey. No amount is too small, just start small is better than nothing. All you nee d to do is to see it that you are saving down from  your income for your future, and then discipline yourself and be patient. Patience is the key to success.