Looks like Cardano is not able to be staked on coinbase
https://help.coinbase.com/en/coinbas...king-inflation
Eligible cryptocurrencies for staking
Cryptocurrency Minimum Balance Needed Rewards Payout Rate
Algorand (ALGO) .01 ALGO Daily
Cosmos (ATOM) 1 ATOM 7 days
Ethereum (ETH) No minimum balance Daily
Tezos (XTZ) 1 XTZ 3 days