When the cryptocurrency falls, newcomers panic. They don't realize it's A SALE. And experienced people buy it without succumbing to emotions. Absolutely logical action, since it follows the golden rule in the world of trading - buy when the coin is cheap, and sell for expensive at the top of the price. In the future, the price of bitcoin may fall even lower, so now you should not buy with ALL the money. It is always necessary to leave financial room for maneuver. In our case - additional purchases. Keeping bitcoin without sales and purchases is not right. I think you should always balance between BTC and USDT.
We shouldn't generalize them because I believe that there are still newcomers who are fully equipped with knowledge before they get their hands on Bitcoin. Meanwhile, those who panic sell when the price is dumping are also the same people who also panic buying after they see that the price of Bitcoin is skyrocketing.
This is wrong because this isn't the rule of investing/trading. In the future, it's expected that the price of Bitcoin will grow bigger because of the growing adoption but there are times where the price will fall down only to follow the cycle and that is also to give people a chance to re-buy right after they sell on the bull period.