Cardano certainly has both a working mainnet and a working wallet, and has for a couple of years. They are also running a testnet for their staking capability,

Cardano certainly has both a working mainnet and a working wallet, and has for a couple of years. They are also running a testnet for their staking capability, which will promote to the main net eventually -- but claiming they're not running a live net and don't have a wallet is absolutely incorrect.