Why does D&D need the Common language?

We're exploring language in TTRPGs. Why D&D uses Common, what breaks when characters can’t understand each other, and how weird ideas like “gibberish” handouts or translation puzzles could make your game more fun (or completely unbearable).Watch the video version on YouTube: https://youtu.be/6-UERnOsXDMAnd sign up for the newsletter: https://www.start-a-quest.com▼▼ SOURCES MENTIONED ▼▼1. Dialect https://thornygames.com/pages/dialect2. Signs https://thornygames.com/pages/sign3. Xenolanguage https://thornygames.com/pages/xenolanguage-a-game-about-alien-language-and-human-memory4. OG: Unearthed https://www.indiepressrevolution.com/xcart/Og-Unearthed-Edition-PDF.html5. Decaying Orbit https://storybrewersroleplaying.com/decaying-orbit/?v=8bcc25c96aa56. Alice Is Missing https://www.huntersentertainment.com/alice-is-missing7. The Wildsea https://www.myth.works/collections/the-wildsea-homepage8. His Dark Materials books https://en.wikipedia.org/wiki/His_Dark_Materials