It depends on how you're gonna invest. There are many ways to invest and earn in bitcoin. Given that, it has different risk levels and income potential. It is important especially to those beginner in this industry. Some of these methods are beginner friendly and some are extremely complex and needs expertise. All in all, I can say that bitcoin is a great itself, the thing is how can we choose to profit from it.
Actually, there is only one possible way to "invest" in bitcoin - exchange one asset, which is dollar, for the other asset, which is bitcoin itself. Simple as that. I consider bitcoin the most suitable investment for beginners, because the only thing they should be aware of is advantages of it, nothing more. Unlike gold ETFs and stocks, it is accessible for almost everyone, it can be bought without having to involve third parties. Each person on this planet with an internet connection is a part of a new financial system. It is worth it to invest in innovations like bitcoin, because it is an idea that cannot be banned or destroyed. Once invented, it cannot be invented back, it will exist forever.