Although Bitcoin is a volatile and risky asset, people are more attracted to it for investment. Over time, the number of institutional and individual investors is increasing and at the same time it provides higher returns in terms of appreciation. Among valuable assets gold is stable in nature and is used as the federal reserve of any country.
The process of depositing Bitcoin is relatively simple and investors can buy any fractional amount at any time rich or poor with any income. But people may need relatively more capital to buy gold, which can be difficult for low income investors. The long term results of continuing to deposit Bitcoin from discretionary income are much more positive for investors.
People are motivated to get maximum returns when they want to invest in bitcoin and over time there are many things that can be learned so that the decision to take an approach to bitcoin becomes a choice based on considerations that have been considered.
Gold tends to be stable but talking about returns is actually slow so for people who dare to take risks, they will diversify into several places that are more optimal and maybe bitcoin is one of the more convincing places.
Another advantage as you said that bitcoin can be purchased in any amount desired according to the money that people have while gold does not have such an opportunity.
But the point is, the bigger the capital we have, the bigger the profit we get and that applies to both Bitcoin and gold itself, regardless of the risks that occur to both of them on the journey.