If you’re confident in Siri’s abilities to dictate text and accurately relay what you are saying into a message, you can enable a feature that allows you to automatically send messages from Siri on iPhone without asking for a confirmation first.
When the confirmation is enabled, you’ll see the text typed out that Siri has dictated from your voice to the message, and then Siri will ask to confirm to send the message. With the automatic sending feature enabled, there is no confirmation, Siri will just send the message right away. Sound good? Of course it does, that’s why you’re looking to enable this feature for the sheer convenience of it, right?