Yes, people of all genders, including girls, can dream about their crushes. Dreams often reflect our waking thoughts, desires, and anxieties. If someone is thinking about a crush frequently, it's only natural for that person to appear in their dreams.
Dreams can be a window into our subconscious minds, and a crush can be a significant part of our waking lives. The intensity of these dreams can vary depending on the individual and their feelings towards their crush. Some people may have fleeting dreams, while others may have more vivid and recurring dreams involving their crush.
While there's no definitive answer on how often or why people dream about their crushes, it's a common experience and can provide insight into our emotional states.