1.Infinitive of purpose: "to express their personal style and individuality" uses the infinitive form to explain the purpose of wearing casual clothing, adding clarity and depth to the sentence.
2.Comparative structure: "greater freedom of movement" uses the comparative form "greater" to highlight the benefits of casual clothing, demonstrating a complex sentence structure.
3.Adverbial phrase: "without the constraints of formal dress codes" functions as an adverbial phrase, providing additional information about the advantages of casual attire, enhancing the richness of the sentence.
4.Present participle as an adjective: "less time-consuming to select and maintain" uses the present participle "time-consuming" as an adjective to describe casual wear, showcasing advanced grammar usage.