In 2020 the defi exploded, in 2021 it may facing harder regulation.
A new draft in the USA planned to identify all private wallets, and companies, custodians have to deny all transactions from unidentified addresses. This means you won’t be able to sell crypto for fiat, from your own wallet.
In the EU, the stablecoin issuers would match the infrastructure of the bank system, including organization, compliance. Crypto communities are based on sovereignty and decentralization. Hard to think, how they will agree with this.