Adjectival phrases as attributives: "practical skills" and "long and varied experiences" use of adjectival phrases as attributives adds details and depth to the description, making the sentence more vivid and specific.
Present participle as attributive: "navigating both personal and professional challenges" with "navigating" as a present participle attributive, it indicates the types of skills young people can develop, adding complexity and information to the sentence.
Infinitive as adverbial of purpose: "to tackle life's hurdles" as an adverbial of purpose, explains the purpose of sharing knowledge by the elderly, enhancing the logicality and structural complexity of the sentence.
Compound structure: "unique and effective approaches to tackle life's hurdles" using a compound structure, displays the characteristics and purpose of the elderly's methods, increasing the complexity and precision of the sentence's expression.