Aptos announced on Twitter about its Delegated staking mechanism:
Introducing Aptos ‘Delegated Staking’—a new feature on Aptos that makes staking more accessible and user-friendly.
Users can now delegate their staking power to a trusted network validator and earn rewards as an individual—providing options outside of the previous threshold.
Delegated staking empowers individuals to earn staking rewards without having to become a validator themselves.
Now, multiple wallets can stake APT on a single trusted validator node. Users can delegate their staking power and participate in staking with as little as 11APT
Delegated staking offers everyone 
Increased accessibility 
Flexibility 
Self Custody
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