Social media platforms — including globally dominant services along with numerous regional and specialized platforms — have grown over roughly two decades from a niche personal networking tool into deeply embedded infrastructure for communication, news consumption, commerce, and political and social organizing worldwide, with several individual platforms each reporting well over a billion active users globally. This growth has been accompanied by well-documented, serious concerns and active research regarding mental health effects (particularly among younger users), misinformation spread, political polarization, and platforms' outsized influence over public discourse and information access — concerns serious enough that several individual countries have already imposed bans or significant restrictions on specific platforms for varying periods and reasons, providing some real, if geographically and temporally limited, evidence about how populations and economies adapt to losing access to specific platforms.
Beyond their most visible role in personal communication and entertainment, social media platforms have also become significant infrastructure for small business marketing and direct sales (particularly in regions and demographics where dedicated e-commerce websites remain less common than direct social media-based selling), a primary news source for a very substantial share of the public in many countries (increasingly displacing traditional news outlets' direct websites and broadcasts as many people's primary information source), and a significant tool for political organizing, activism, and civic communication, including, notably, its documented role in coordinating protest movements and civic organizing in various countries over the past two decades.