Bitcoin has proven to be the best investment over the years, and nobody with a good knowledge of Bitcoin and cryptocurrency in general can deny the fact that Bitcoin is not the best investment. Considering what early investors have made from Bitcoin since its exitance, I don't think it can be compared to any other investments, such as real estate, gold and others like that.
Yes, I agree with you that some people have quit their Bitcoin investments because it is not meeting their expectations. They thought it would make them rich quickly, but that is not happening. Any investment that promises to make someone rich quickly in the short term usually involves high risk, which I would consider similar to gambling. When someone engages in such investments, they are likely to lose easily. If more people can stop thinking that Bitcoin will make them rich quickly and instead view it as a long term investment, it would be a great idea and could lead to significant benefits.