이 문장에서 to부정사 용법이 궁금해요

“Job interviews have become an increasingly important part of the employment scene, not only because of the competition for positions but also because of the growing trend for people to have several different jobs during the course of their working years.”
여기서 to have가 the growing trend를 꾸며주는 형용사적 용법인가요?
for people은 의미상 주어로 보면 될까요?