Capital is not a big factor. If you want to invest, then you should definitely invest in Bitcoin, but if it is with a small amount of money, there is no problem. Now you have a small amount of money, you can continue your investment by DCA constantly. If you can invest continuously in the DCO method and invest for a long time, then you will definitely own a large amount of Bitcoin someday.
Of course capital is a big factor. How can we invest more then if we only have a limited capital? If we have a limited capital our profits can surely be limited too. But if only for the experience sake, then yes. We still can invest that small amount in BTC. I noticed that you mentioned DCO there apart from DCA but is that different from it? Or maybe it was only just a typo? But, maybe it is only a typo because in my long year of staying here, I haven't heard one yet. DCA is good no doubt but if our goal is to collect as much BTC as possible, then we also need to control our selves from selling.
Imagine what Bitcoin was like 10 years ago and now imagine what Bitcoin has become. So invest directly in Bitcoin without considering any aspect, you will get much more success in it but of course you have to have a long-term plan for your investment.
Of course that before investing, we must always consider some aspects first. Knowledge is also important but after it and then we already have enough capital, that is where you can say that we must not wait any longer because time is ticking.