The most important thing to understand is that you will be able to turn into a badger. Yes, the David Attenborough of Dungeons & Dragons classes, the druid, is on its way to the early access release of Baldur's Gate 3. When? "Very soon," according to a press release. There's no specific date yet.
Besides a badger, the druid will be able to become a polar bear, a spider (probably bigger than a house spider), a raven, a cat, a dire wolf, and a curious-sounding "aberrant shape". This is something triggered by embracing the Mindflayer tadpole you have shoved into your eye at the beginning of the game, apparently.
These Wild Shapes are obviously useful in combat, but they have uses outside of it too. If a bear is blocking your path, as they tend to, the great clumsy oafs, why not try changing into a bear and having a chat with them?