What can be inferred about the social role of public libraries in contemporary society from the passage below?
Public libraries serve as vital community resources providing free access to knowledge and information. These institutions offer extensive book collections covering literature, science, history, and numerous other subjects. Beyond lending books, modern libraries provide internet access, enabling digital literacy among economically disadvantaged populations. Reading programmes for children encourage early literacy development and foster lifelong reading habits. Libraries also host cultural events, workshops, and lectures that enrich community life. Quiet study spaces attract students preparing for competitive examinations. However, budget constraints often limit libraries' ability to acquire new books and upgrade facilities. Despite these challenges, dedicated librarians work tirelessly to maintain collections and assist readers. Libraries remain democratic spaces where knowledge is accessible regardless of economic background.