Many new investors are naive enough to assume that if an investment is profitable for someone else, it can also be profitable for them. They think it's that simple. This is usually the case with businesses or investments in valuable assets. Even these investments, which may seem intuitive and don't require a lot of experience or knowledge, require a minimum of experience in the field before venturing into a must do experimental stage.
Most of the time that's the case of those newcomers who got hook with how the trend works, most of them because of the current hypes they also start to engage with the same business and unfortunate things happened after, it's always your good judgement and good skills, knowledge and patience in learning the process before stepping into any business that you are wanting to begin / start.