It's important to note that:
* Hair texture plays a role: Some hair types are easier to straighten than others.
* Tools and techniques matter: Using the right blow dryer, brush, and techniques will help achieve the desired results.
* It's a matter of personal preference: Some boys prefer to wear their hair straight, while others prefer other styles.
Ultimately, whether or not a boy chooses to blow-dry his hair straight is a personal choice.