The proportion of UK social media users who actively post, share, or comment has fallen sharply, driven by the rise of video-focused platforms and growing concerns about the long-term impact of online activity, according to Ofcom.
Ofcom's annual adults' media use and attitudes report found that just 49% of adult social media users now engage in posting, sharing, or commenting, down from 61% in 2024. The number exploring new websites also dropped from 70% to 56%.
Joseph Oxlade, senior research manager at Ofcom, attributed the decline to the popularity of video apps like TikTok and Instagram Reels, which encourage passive consumption over active participation. He also noted that users are increasingly worried about old posts resurfacing and damaging their professional or personal lives.
The proportion of adults concerned about future repercussions from past posts rose from 43% in 2024 to 49% last year. This fear has been exemplified by high-profile cases, such as actor Karla Sofía Gascón, whose Oscar campaign was derailed by historic tweets.
Despite the drop in active use, social media remains widespread, with 89% of adult internet users on at least one platform. However, fewer users now believe the benefits of being online outweigh the risks (59% in 2025, down from 72% in 2024), and only 36% think social media is good for their mental health, compared to 42% previously.
Meanwhile, AI tool usage has surged, with 54% of UK adults using tools like ChatGPT, up from 31% in 2024. Some users interact with AI as if it were human, seeking relationship advice or companionship while working from home.
