It's hard to be a diamond hand, but will try for four years to hold it.
I believe most of them are selling BTC because they are short of cash and they think when the price drops it is better to sell at a 20% loss than to lose more later.
There are still some people who are more concerned with investing without thinking about how emergency funds should be prepared.
That's why it is always suggested that you don't use that amount of cash which you have to use in your daily routine because you will not be able to wait longer and you will need money for daily uses while Bitcoin will be in dip so obviously if you sell then you will be in loss.
Before Investment you should be prepared for each type of situation and you should accept the fact that selling when there is a dump will be completely unsafe. Investment in Bitcoin cannot give you anything Unless you follow certain rules and regulations and once you invest then you should not take your money back until it grows to give you payback.
I had prepared everything before the investment started.
The monthly salary is not entirely for investment, in fact it is only set aside 20% of the total salary and 10% for emergency funds 60% more for our daily needs.
If you don't do that then for me it will be easier to sell bitcoin at any time if the cash runs out, but if you do good management at the beginning then your investment will be safe and not sold when an urgent situation comes.