Yes one should be careful with their investment in the crypto market. We shouldn't invest our kitchen money in bitcoin as we never know when we may be needing that money and at what price is Bitcoin at that time. Chances are that one may have to sell in loss if prices are lower.
Another scenario is not to take loans in order to buy Bitcoin. You have to return loans by selling Bitcoin and you never know the price of Bitcoin in immediate short term.
This is absolutely right i do advice when investing in Bitcoin always invest in what you can afford to loss don't ever use emergency funds or borrowed money or ready the volatility of bitcoin has said it all that any one depending on short term hold it is a risky movement and an
financial obligation
This statement belong to gambling and gamblers and never bitcoin. If you invest in bitcoin and hold, from the record we have seen, you are not going to lose the money instead you will be richer and happy. There has never been any record of someone losing money by holding bitcoin so that statement doesn't apply in bitcoin. The problem most of you have is that you came into bitcoin with the mindset of gamblers that it is going to make you reach overnight. It is when the money refused to turn in within a short time, you sell at loss at of fear to avoid losing more. It hardly occur to you that holding a little longer like 4 to 10 years could transform your life.
For bitcoin, the statement is better to put it that investment should be made with discretionary income to avoid the pressure of selling at loss.