Crypto is a volatile market and if someone wants to put all the wealth in the Crypto market then it means that he is putting all of his money on plunge because there is no pledge that this investment will full your pocket or will be a cause of your enhanced bank balance. We should not put whole amount in that business which is really volatile there are also large number of other businesses like that of real estate, business of gold and also the buying and selling of cars.
I am not saying that crypto is a bad market but I want to say that put a minimum amount of money in Crypto if you don't want to lost your money it is also important to put your money in different business but don't use your large percentage in a single business as business cannot identify your success with 100% surety.
While diversification has its good points, it also has some important negatives, with the most important being that a person cannot really begin to diversify their portfolio until they have a high enough amount of money to do it, after all someone that has just 100 dollars cannot even think about diversifying, as a great deal of the best ways to do this are way more expensive than that, so many people do not have too much of a choice even if they know diversifying their wealth is the right move.