What is the best support for children from ordinary families?

Standing over 190cm tall, I participated in basketball, swimming, and table tennis since I was young. At first glance, I thought these methods were just ways to help children grow taller. After reading it carefully again, I realized every word is a piece of advice.

Tall, rich, and handsome—these are already within the capabilities of height and good looks.

Teeth, posture, and skin—these are things that only become apparent in adulthood, requiring a lot of time, money, and effort, and may not even be fully compensated for.