Any individual can run a validator node and start staking. Nevertheless putting together your own personal node or staking system might be rather tricky since it requires specialized expertise. Proof-of-Stake network protocol works by locking up investors (stakers) holdings and making them to concur to not withdraw their stake https://financefeeds.com/rivalz-ai-partners-with-51nodes-to-drive-ai-powered-transformation-across-german-industry/