Ключевые слова: 20s, academic, active, assistance, assisting, back to school, black, boy, caucasian, child, childhood, classmate, coach, cute, development, education, elementary, elementary school, exercise, exercise mat, exercising, female, fit, fitness, fitness trainer, girl, guidance, healthy, innocence, knowledge, learn, learning, male, man, millennial, mixedrace, practice, primary, school, school premises, schoolgirl, schoolyard, sports, sports teacher, stretching, stretching exercise, student, summer, sunny, teaching, together, trainer, training, uniform, wellbeing, wellness, young adult,