Guys, Why is boot camp so instense? Is it really what is on movies?

My mom is thinking about sending my brother off to boot camp and on movies it look so extreme... and the people yell in your face and stuff... and you have to do 100 pushups and excersie all day and wash dishes... I mean is it really that extreme like on the movies like Pandoras box : Boot camp unrated that came out in 2008, or G. I. Jane
Guys, Why is boot camp so instense? Is it really what is on movies?
Post Opinion