Actually it is also needed to accumulate the market condition, right? If people don't have any fear to sell their Bitcoins then institution will never be able to buy a lot of coins within short period.
People must have fear, it is normal. It is impossible to expect everyone has no fear, investment should always have some risks that make people be fear. As long as the market condition is changeable, fear will exist. But sure, fear isn't always a bad thing, it sometimes gives us a chance to buy at a low price. If people aren't fear, they mustn't sell at a cheap price.
Another thing is long term hodling is not for newbies. Actually, new traders are always worried about their investment and start panicking as soon as they see bearish conditions.
Why don't? Depends on the coin. If it is Bitcoin, holding it for a long time is very appropriate for newbies. Bitcoin value is increasing from one halving to another halving, we may see Bitcoin price above $80k in the next halving, in 2024-2025. So, for newbies, it is the right decision to buy Bitcoin now and hold it until the next halving.