I prefer the look of a birkin because I’m a casual gal but there’s no denying the appeal of a shoulder strap. I drive pretty much everywhere so all day carrying isn’t really an issue for me. My only Kelly is a 35 so it’s equally cumbersome but when I had a vintage well used box K28 I ended up selling it because the daintier ladylike look of a smaller Kelly looked weird with my uber casual way of dressing even though it was roughed up. Sold my Chanel reissue for the same reason and only have a mini Chanel for evenings or when I want a small bag. I think Kelly’s are lovely but I need the larger casual sizes to work with my wardrobe. You gotta do what works for you!