Maybe I require more room in my seat than @Tykhe , but I have both B30; B25; and, K25, and I would not take any to a casual restaurant. I am not comfortable sitting in front of or next to a BK25 in my chair. So, I really only use them for daytime. The only bags I take to small, casual restaurants, theater, or shows (those without lots of banquette space or a bag stool) are, in this order: TPM evelyn; So Kelly elan; and the MKII. Or a clutch.If you do a lot of eating at a bar or omakase tables, a birkin 30 is a bad choice because often times it doesn’t fit on the back of the stool or on the hooks under the table. For that reason, I prefer the b25 for evening use. I am also 5’7 and although I think the b30 looks more proportional on me, I use it less because it is too big for most cramped Manhattan restaurants
Actually, I recently tried to wear my b30 more and the hostess actually came up to me during the meal and took my bag away because it was too big. She put it by the reservation desk at the restaurant entrance and my husband kept reassuring me that no one is looking to steal my “large ugly orange tote bag.”
As I get older, I prefer not to carry the weight of a B30. Since Apple Pay, I really don’t even need the interior space of a B25. So, get whichever one you fall in love with that suits your daytime needs
