Yes even in US/Europe if you order bungkus you're not allowed to dine in. I know it's their rules, but Malaysia is so flexible nobody cares if you dine in or ask to bungkus your leftovers 😅
In Japan they don't do this because they don't want to take any risk or responsibility for food after been takenout.... they need to avoid complain from those 'weird' customers 😢
Ohhh so it's not a norm to take away unfinished food in Japan? I always did it here. Good to know. Who knows if i went to Japan one day i can avoid creating awkward moments.