When I began learning Haskell, typeclasses were confusing to me: at first, because I didn’t fully understand why they were needed, and later, because I didn’t understand the advantages they offered over Java’s interfaces. If you’re new to Rust but haven’t used Haskell before, you’ll likely be in the same boat, but moreso; traits are pervasive in the ecosystem. At heart, traits are very similar to interfaces in Java or C♯.
