Not at all, unless you lose weight for health reasons. Sister is 13 years old this year, and her net height is 169. She is the main force of the school basketball team, and she is still learning street dance after class. Her figure is well-proportioned, and her legs are long and thin, which often makes me envy, but her classmates all say that my sister is obese and keeps brainwashing. My sister believes her, and she doesn't eat lunch at school, but only eats a little dinner, but the training of the basketball team. My sister is only in primary school! I feel dizzy without eating and have no spirit all day. It hurts to think about it now! So, don't lose weight because of what others say. From the health point of view, your body is the most important!