is it a norm?
Imagine this: Your partner & you are hungry and both of you wanted to pack lunch to eat at home since the weather is hot. However, your in-laws are also at home at the same time. Will you pack some food back for them even though they've taken their lunch or will you just buy 2 packets of food just enough for you and your partner? You will be surprised how many people i know who would just pack food for themselves and not for the whole house. Takkan 10 pieces of pisang goreng can cause a lot of money???