Most of the people lack's patience every time the market price is dropping and that is the reason they lose a huge amount of their investment due to the volatility of the market.
Lack of patience, lack of experience and they never treat these corrections as a nightmare but not an opportunity to buy at very low price.
They look at the crypto market as an abnormal market where they will buy a coin worth $1 and will think of the profit few days with 1000% gains.
Though this happened before but it's unlikely today.