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Background The developmental timing of first access to social media and personal smartphones has become a key issue in European debates on child online safety. Current policy frameworks emphasize age-appropriate safeguards, safer digital-service design, and shared responsibilities across platforms, public institutions, families, and young people. Empirical evidence on digital-media use and adolescent health is heterogeneous, and little is known about whether adolescents with early versus late access show different current exposure profiles. This study descriptively compared current screen-time and perceived-overuse profiles according to the reported age of social media initiation and first personal smartphone ownership among adolescents in the European Union. Methods We conducted a descriptive secondary analysis of published, survey-weighted aggregate subgroup tabulations from Flash Eurobarometer FL579, Impact of excessive screen time and social media on young people’s mental health. The survey included 26,297 adolescents aged 13–18 years across the 27 EU Member States. For the primary policy-oriented comparison, early access was operationalized as access before or around age 13 years by combining the available categories “below 10 years” and “10–13 years”, later access was defined as access at age 14–18 years. Outcomes were reported screen-time thresholds on typical school and weekend days and self-reported perceptions that total screen time or social media time was too high. Published survey-weighted percentages, approximate combined-group percentages, and absolute percentage-point differences between groups are reported. No individual-level, inferential, or causal analyses were performed. Results Current weekend screen-time profiles differed by the reported age of social media initiation. Adolescents reporting social media initiation before or around age 13 years, compared with those reporting initiation at age 14–18 years, more frequently reported at least 6 hours (50.6% vs. 40.0%), 8 hours (29.9% vs. 23.0%), and 10 hours (16.5% vs. 11.0%) of screen time on a typical weekend day. Differences on school days were small or absent. Descriptive comparisons by age at first personal smartphone ownership showed a similar weekend pattern: 49.1% versus 39.0% reported at least 6 hours of weekend screen time. A higher proportion of adolescents in the before/around-age-13 social-media-initiation group rated their total screen time as too high (42.8% vs. 39.0%) and their social media time as too high (41.0% vs. 37.0%). Conclusions In these aggregate European data, social media initiation before or around age 13 years was descriptively related to a more intensive current weekend exposure profile and to somewhat more frequent perceptions of overuse. Comparable descriptive patterns for first personal smartphone ownership were weaker, particularly for school-day screen time and perceived social-media overuse. Findings should not be interpreted as evidence that earlier access causes later intensive use. Rather, they highlight the relevance of considering developmental timing alongside family media practices, platform design, and broader social contexts in research and prevention.
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Peter et al. (2026) studied this question.
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