Polkadot now lets you natively send tokens across parachains
Polkadot has enabled a messaging system called Cross-Consensus Messaging format (XCM). This allows all Polkadot-based blockchains to directly communicate with each other for the first time.
XCM is a token messaging format facilitating the exchange of assets across Polkadot’s parachains. It allows parachain users and developers to exchange data and crypto assets between them. This will make it easy for users of these blockchains to send tokens from one parachain to another.