A total of 179 children aged 5 or younger reported rental income from real estate in 2024, down from 217 the previous year, while 3,233 minors aged 18 or younger reported combined rental income of 55.584 billion Korean won. National Tax Service data submitted to Rep. Moon Jin-seok of the Democratic Party of Korea, a member of the National Assembly's finance and economic planning committee, showed average rental income of 17.2 million won per minor. The preschool group represented about 0.01% of the roughly 1.582 million children in that age range, while all minors reporting rental income represented 0.04% of the roughly 7.325 million people aged 18 or younger. Because minors rarely buy income-producing property independently, the income is presumed in many cases to stem from real estate inherited or gifted by parents or grandparents. Moon urged the National Tax Service to examine the sources of funds and investigate possible irregular inheritance or gifting.