For the very same reason that (for example) pension or union fund managers can't just allocated x% of their portfolio to blackjack or rolling the dice.
Crypto is still INCREDIBLY high volatility and high risk. Crypto is also a pretty shitty instrument with regard to hedging, as they all follow the same movement.
Mitigating risk in crypto is very much a hands-on job.
For the very same reason that (for example) pension or union fund managers can't just allocated x% of their portfolio to blackjack or rolling the dice.
Crypto is still INCREDIBLY high volatility and high risk. Crypto is also a pretty shitty instrument with regard to hedging, as they all follow the same movement.
Mitigating risk in crypto is very much a hands-on job.