However, as far as I feel, investment should never be taken as pressure, if an investor thinks before investing that he can invest $50 per month, then I would advise him to invest $40 per month. The reason for giving such advice is that there may be times when money may be needed, but at that time the investor is not able to invest in the same way, so he should invest $40 and keep the remaining $10 in his emergency fund so that he can use it in any danger and so that his investment remains consistent even during financial disasters.
Yes, investment should never be taken as pressure so that we will not invest wrongly, but if it's because an investor decided to invest $50 per month with either the DCA strategy or the lump sum strategy you are saying that investment should never be taken as pressure, you may be wrong that the investor is under pressure because you don't really know the income size and the discretionary income size of the investor to determine if he's overaggressive in his bitcoin investment. Before an investor will decide to invest $50 per month with either the DCA strategy or the lump sum strategy, the investor is fully aware that he's supposed to make provision for his emergency funds after or before starting a Bitcoin investment, which I believe he has made available for his emergency funds before he decided to invest $50 into Bitcoin, so if there's any emergency in the future, he can easily take care of it and continue investing in Bitcoin consistently.
Our responsibilities differs, one investor can conveniently use $50 to accumulate Bitcoin periodically in his DCA strategy while another can't. I don't like to use specific amounts to give examples of how much to buy Bitcoin with, I prefer to use percentage of income. Before buying Bitcoin as an investor you need to have a budget for your total income, priotize your needs according to their importance then allocate them appropriately.
For most investors that understands financial management it's their basic expenses that determines the percentage of income that enters into their discretionary funds. Basic or primary expenses are mostly constant so if it's 60% of your income covers it that means that the remaining 40% is for secondary needs and it'll fall into your discretionary fund. There you'll make a sub budget for the percentage of money that goes into every areas of your secondary needs. You need to priotize again to determine the amount for Bitcoin accumulation, emergency funds and the rest, it is basic economics.