Interesting story, according to you, the purpose of this investment is long term, however, I'm wondering how you considered Bitcoin as your best investment? Don't get me wrong, but, the amounts being invested are quite small, considering Bitcoin's value. I believe that sometimes, investing in some other reputable altcoin, such as Ethereum, Cardano, Binance and many more, is deemed more profitable than purchasing Bitcoin.
I am sure that if he can invest in Bitcoin continuously with that kind of method, he will acquire many.
Let's see how he always invests every week for months.
He is always trying to add around 10$ in every week start and he continues it every month.
If he can do it continuously, he will accumulate more Bitcoin.
And well, for here, with that amount, I personally like how he chose only Bitcoin. I know that he said he wanted to invest in it for a long time. So, his purpose may be for long-term investment.
indeed it would be very good to do this and from an investment and profit perspective it would be huge, but not everyone can do that and maybe only a handful of people are able to do it.
not without reason, because indeed this is a long-term investment project and if you want to do a strategy like this at least you need a lot of money and the money must be unused for daily needs.
apart from that, everyone has a different perspective, especially in investing, what the OP does is that he only focuses on bitcoin and maybe I, you or someone else will do different things because if you see this, I personally also want to do the same thing. same but finance doesn't allow that

and indeed I prefer to invest in bitcoin and some altcoins.