I had a Chanel bronze bowler in lambskin and was very careful with it. That little precious thing was so soft, and extremely prone to irreversible scratch marks.
I think the soupleness of lambskin makes it possible to be used on small leather goods and smaller bags. In a birkin, even if Hermes decides to experiment with it, it will be a very light bag, extremely delicate, and not a bag you can toss around.
Lambskin is already being used in the JPG Kelly Pochette for its innerlining. I think the lightness of the leather is one of the key reasons, it's chosen.
I think the soupleness of lambskin makes it possible to be used on small leather goods and smaller bags. In a birkin, even if Hermes decides to experiment with it, it will be a very light bag, extremely delicate, and not a bag you can toss around.
Lambskin is already being used in the JPG Kelly Pochette for its innerlining. I think the lightness of the leather is one of the key reasons, it's chosen.