because they want sales that are easier to be different if we just buy a commodity and then just save it just to wait for the price of the commodity to go up to get profit but the profit will not be too big, in contrast to invest in a market that has ease to make sales and profit
When you invest your money in crypto your money can multiple and sometimes it can be huge when the price of bitcoin or any altcoin you have will increase, that is why many investors invest on crypto.