Same here in Indonesia. If not their first name, then their title "younger brother/sister" (adik), "older brother sister" (kakak). Interestingly, when the seco

Same here in Indonesia. If not their first name, then their title "younger brother/sister" (adik), "older brother sister" (kakak). Interestingly, when the second child is born, the "adik" becomes the "kakak", which you would think would be confusing but the switch happens pretty naturally.