Speaking ONLY KOREAN with my bilingual son | Korean ice cream stores with no staff

My son is bilingual, and also happens to like ice cream (who doesn't). So I took him to an ice cream store that's open all day without any staff members, since it would be easy to film there, and let him pick out a few of his favorite flavors. Then we brought them back to our apartment and tried each of them. The whole time we're speaking only in Korean.