They only cite bad examples in the crypto market but ignore the movement pattern of bitcoin so far, but I also don't blame @kesmex that someone will be free to choose to invest in the real world or crypto, all who benefit then it's worth the investment.
I think that is also very clear because investing in anything is for profit and as long as it can be very profitable then it is definitely worth the investment.
But always consider the risk when you want to choose it and also see where the potential is because this is different from investing in the real world which is always easier to know what is better and more profitable.