Investing in bitcoin is not harmful. You just need to use the money you can afford to lose when investing in bitcoin if you want to hold your bitcoin for the long term, but if you use the money that is meant to solve your living expenses and invest in bitcoin, it will put you in a difficult situation where you will always struggle to survive, and you will have no choice but to sell your bitcoin to get your living expenses sorted out for when they arise. Investing in bitcoin may only lead to legal action if you come from a country where buying bitcoin is not allowed, and if you are caught buying bitcoin, you will be fined, but if you aren't from such a country, investing in bitcoin is not harmful.
People that think it's harmful are does that don't really understand how investing in bitcoin works when you tell them to go for knowledge knowledge first they don't want to, and even when you talk about money you can afford to lose does not mean you will lose everything if you are holding the moment the price bounces back you will make your money back but when it comes to trading if you don't put the proper leverage then you might lose all your capital.
This are reason why you need to understand the patterns and even the candle sticks to help you and you must not be greedy because it is always one of the factors that people face they want to make everything over night. A lot of countries are not saying anything but indirectly if you look at it is better because the moment they make it legal you start paying insane fees. For no reason.