I bought this for my 5yo daughter, who is Korean by blood but was born in the States. My husband and I are both Korean, but we primarily speak English at home since it's the language we are most comfortable with. My daughter has been showing increased interest in learning Korean these days so we bought the starter kit for her, and I'm so glad we did! She's been staying up late at night, teaching herself all kinds of words and phrases, and the best part of all - she's been practicing with both of her grandmothers, both of whom don't speak English very well. I truly believe this is one of the best gifts I've given her: more than just the books, we've given her an opportunity to connect and communicate with her grandparents. So grateful that a product like this exists!