What you're saying is a common strategy for almost every investor, buying assets by paying in installments over time. So, you don't need a large amount of capital to start investing, especially in Bitcoin. Investing in property makes sense, as it requires substantial capital, but investing in Bitcoin can use the DCA strategy, which allows you to buy small amounts for long term goals.
In investing, capital isn't the most important thing; the most important thing is having the intention and a strong desire to change your mindset and build confidence in investing. It's also important to understand that investing isn't for everyone, but it's one of the right steps to ensure future financial security.
Honestly most of the people will not invest because they feel that they must save a great deal before investing but the misconception only makes them lag behind. The thing is that you may begin with what you have even making a little dollars per week. The important thing is to become consistent. In the long term, such habit differs a lot. And investing in a Bitcoin or stocks using the dollar cost averaging strategy will lower the risks making the fluctuations less intense. You do not have to be rich to start but a start at the early age with commitment will get you there one day.