Some even sell properties and other stuff they own only so that they can invest the money in Bitcoin. I believe that shouldn't be done unless they can afford to do that and won't have any financial problems in case the price goes down after they make their investments.
In this case, of course, the assumption you convey is correct, for those who already know the pattern and continue to update the BTC price history per time, I think they will be more relaxed seeing the decline a few days ago and will not hesitate at all to continue collecting BTC by installments or DCA. There is a good point that I take from you, of course it is very relevant if someone will feel very comfortable investing if everything is in accordance with expectations, both regular monthly income. But other times and opportunities are predominantly not the same for each person's condition. This is the real obstacle.
When people have understood that Bitcoin investment will be very good for their future, of course they will take advantage of the declining conditions to continue collecting Bitcoin according to the income they have and will not be influenced to sell in these declining conditions and maybe those who are new to Bitcoin and are learning about this investment may panic but if they have someone who can advise them, of course they will continue to hold their assets to be able to wait for profits when the price increases again.
When someone invests, of course they will find things they could not have predicted before and as the investment they make progresses, of course they will have the right way to avoid things they do not want in running the investment, but they must still invest Bitcoin according to the income they have in order to achieve their investment targets.