Bucky has an adorable female white cat with blue eyes named Alpine in the comics who goes pretty much everywhere with him, and he deserves to have Alpine in the MCU too. Yes, Sebastian Stan is allergic to cats, but that doesn’t mean they can’t make her CGI. Goose is mostly CGI due to Brie Larson’s cat allergy, which means they’ve literally done it before, they just don’t want Bucky to have Alpine in the MCU for some reason. No idea why, she’s adorable.