A short boy with a height of 162 can be a fitness instructor, because the conditions for becoming a fitness instructor are qualification certificate, professional knowledge and strong body shape, and there is no limit to his height.

Conditions for becoming a fitness instructor:

1. To become a fitness instructor, you need to have a professional fitness qualification certificate, so that you can work. Fitness qualification certificate can only be obtained by passing the exam. This is mainly to ensure the safety of fitness customers, especially strength training.

2. To be a fitness instructor, you need to have certain professional knowledge. Fitness instructors should be familiar with the use of fitness equipment and know the knowledge of fitness, so as to help customers use fitness equipment correctly and have a healthy exercise method when exercising.

3. To be a fitness instructor, you need to be strong enough, otherwise the recruiter will not consider hiring, so as a qualified fitness instructor, you need to have a strong body and a relatively good body shape to be more competitive.