Don't have the option to turn on announce messages?

In the notifications tab in the settings, it doesn't show the option to turn on announce messages. I bought wireless charging Airpods (Gen 2) and received them today in the mail and I have tried with the Airpods in to turn this on but can't. My phone is completely up to date and have had this work with some of my family and friends Airpods recently. Any ideas?