$ETH Prague upgrade confirmed to include EIP-3074, what does it mean?

You want to buy a piece of clothing online, but you don’t have enough balance in your account. EIP-3074 is like your friend, who can help you place an order and pay the fee, and then pay him back when you have money. In this process, your friend does not need to become a member of the merchant, nor does he need to deposit money in your account in advance. In this way, you can shop easily without worrying about payment issues.

EIP-3074 actually eliminates meta-transactions and reduces the complexity of contracts.