If an investor is accumulating a total amount of $10 per week and the investor keeps to the plans of accumulating that amount, that is a good idea because $10 per month is about $40 and if the investor continues, six months' time, will be a total of $240.
You're right but is totally depends on what an investors earn on a monthly basis because if using that strategy there could be a possibility of getting yourself into trouble with the investment which can affect your capital at the long run, it doesn't matter how much funds you use for accumulation what should determine it is your monthly salary because there is no way you could advise someone that earns $100 on monthly basis to use $10 for investment on a weekly basis, because in no time he will ran out of funds and will be forced to sell of his investment so that's why every amount invested should be determined by your monthly salary which will allow you to be stable and confidence while accumulating Bitcoin
A bachelor without no responsibilities can invest $10 weekly if his salary is a hundred boxes, because the so-called bachelor has nobody to care for rather than himself, although not everyone can do that but someone who's determine and very ready for the investment and has such plans, no matter the monthly salary, as long as he's not spending recklessly and not also a gambler, bro he can invest $10 weekly.
In some countries, a $10 bill is not a small amount of money, but in other countries it is a small amount of money earned, so both the salary the investor earns a month and the country he's from, matters a lot, like in my country, Nigeria, $100 is about #98 thousand and $10 is #9300 naira so in country like this receiving such amount by month end you can easily invest your $10 into Bitcoin, although the economy in Nigeria is hard but if you don't have any responsibilities, and you are being paid such amount by the end of the month you can invest $10 per week into Bitcoin.
As a bachelor with such amount od income $10 is too small, look at it yourself (93000-9300 = 83700). You will still be left with a big amount of money which if you cut down your expenses and forget buying unnecessary things, you will still be left with more than 10% as the extra cash after you must have DCA with 10% and taken care of your upkeep and emergency funds. Like JJG said it is a pretty BIG ASS waste of time, why don't you invest with 20% and cut down your expenses because bitcoin is worth sacrificing for to benefit from it in future to come.
Since you are a bachelor and still very agile, you can look for another means of income so that you can use that to increase your bitcoin portfolio rather than wasting your time with 10% DCA hoping to make good profit in the long wrong. It is what you invest that you will get in return and that is why you need to have various meand od income, if your source of income wouldn't not enable you to invest a reasonable amount into bitcoin. Don't let this opportunity pass you by and make the right decision at the right time so that in the nearest future, when you look at your bitcoin portfolio, you can be proud of yourself and also your kids can also be proud of you.
As a newbie, you need to use DCA method in other to eliminate fear on bitcoin market price and for convenience.