Players who are under the age of digital consent (13) will be restricted to what services they can use. This includes communication, such as text and voice. If you are over the age of digital consent, then you can submit a request to Bungie to have your information modified. To do this, go to the below link. You will need to provide ID to prove your age. Note that Bungie responds to requests during normal office hours Monday - Friday in the PDT zone. https://help.bungie.net/hc/en-us/articles/24217906958868-Date-of-Birth-Requirements-for-Destiny-2-and-Bungie-Services

Same for me. I can hear the game audio through headphones or speakers but not voicecomms.