Whatever a person does in this life, the skill of self-presentation will be important for him (whether it's an interview at a dream university, an interview for a coveted job, a presentation of his startup, or just meeting new people).
To be able to inspire and infect with your ideas, to speak in a way that makes you interesting and pleasant to listen to; to lead; to be able to improvise in unforeseen situations. These skills are perfectly developed with the help of theater classes.
In addition, in the modern world, it is difficult to do something alone. The theater, like nothing else, teaches children to work in a team, because the result depends on everyone in the performance.
And if you dig even deeper, theater classes teach such complex and important things as understanding who I am and what I want, what people around me want, and how I should be if our interests come into conflict, the ability to empathize and understand another point of view, that is, emotional intelligence. And whatever path the child chooses further in life, a developed emotional intelligence will help him realize his goals and, most importantly, be happy.