1.Relative clauses: "Education and youth behavior are subjects on which older generations often have pronounced opinions" uses a relative clause "on which older generations often have pronounced opinions" to add additional information about the subjects, enhancing the complexity of the sentence.
2.Present simple tense: "They may critique the current education system" uses the present simple tense to express a habitual action or general truth, demonstrating a good command of grammar.
3.Noun phrase as subject: "Observations about the behavior of today's youth" serves as the subject of the sentence, using a complex noun phrase to describe a common action, adding depth to the expression.
4.Infinitive phrase as adverbial: "to the one they experienced in their youth" functions as an adverbial phrase, providing additional information about the comparisons being made, showcasing advanced grammar usage.