because crypto market is very new. it was born less than 10 years ago and the market stayed so small for 6-7 years. And then it started to grow up so fast that is why people made huge profits and started to cash out that is why market is still not yet recovered.
and much of them late while joining in cryptomarket.they bought above $15k.meanwhile some investor enjoy their profit some of them suffering big loss.and till now market didnt recovered yet.