There must be a good strategy in this case even though the goal may be very good to do but when the method only makes ourselves difficult in the end this can hinder the pace of DCA done.
$100 per week will indeed provide greater benefits because what we invest is very large but on the other hand it goes back to the initial problem of whether we can do it consistently for a long period of time? If in the end you can do that and with the support of the benefits you have from the salary you receive every month to be able to invest $100 / week and be able to cover other needs for daily life, it is indeed very good but if we have a modest income and investing $100 / week is draining your cash I don't think it's worth it even though your desire to get 1 btc is very good but in the end when impulsive methods like this are done, this will destroy your desire to get 1 btc because of your difficulty in managing your finances because you are too pushing yourself for the goals you want to achieve.
Keep in mind this is an investment for the long term so when you force from the start with a big start then when you have problems in the purchase made because it is too burdensome then this is precisely what becomes a problem so that the investment that is carried out does not go well.
Of course, sometimes we want to try to speak in terms of specific numbers, such as $100 per week or maybe $10 per week in order to give some level of concreteness to our discussions, and many normies are going to fit within a range in which they are able to afford somewhere between $10 and $100 per week, but if we really start to get into cash management, we might also need to get into discussing reasonable targets, and frequently it seems to me that something like 10% is a fairly reasonable starting point to discuss as a target for someone to save/invest... but of course, it is best that we establish that even the 10% is not going to end up jeopardize anyone on terms of their being able to make sure that they cover their ongoing monthly expenses, account for irregularities that they might have in their cashflow, and even the importance of maintaining some kind of an emergency fund, especially if they are going to end up getting aggressive with their investing/savings amount.
This is the point because after all we don't need to jeopardize ourselves and force to invest a large amount at the starting point because after all it is better to start little by little but there is no need to interfere and jeopardize other needs so that we can invest but not feel burdened by the additional expenses made especially this is also for the future (not for a week or 2 weeks) so we need to see whether our cash flow will be disrupted or not as an initial level in investing.
Indeed, in this case it is not prohibited if we want to do it with a bigger one but we must be aware of the risks that must be faced when trying to set something big from the start then it will be very difficult for us to catch up with what has happened especially if we are not in a good cash flow in terms of finance so that things like that actually make you comfortable and actually become a demand. so instead of that happening it would be better to do it at a point where we are still very comfortable and indeed 10 percent is a condition that could be ideal to do if you want to invest especially if DCA is the main choice of strategy carried out.