If a child loves playing games, first check whether sleep, homework, and outdoor activities are being crowded out — don’t just focus on how long they play

Cost: No cost at all. Simply keep an eye each week on what time your child goes to bed, whether they’ve turned in their homework, and if they’ve gotten any outdoor time.

In plain terms: Only about two or three out of every hundred kids truly meet the criteria for “gaming disorder.” If surveys use very low thresholds and target only teenagers, the rate naturally appears much higher. Real usage data from game companies shows almost no link between how much a child plays and how happy they feel. By law, minors may play games only from 8 PM to 9 PM on Fridays, Saturdays, Sundays, and public holidays.

Benefit: One meta-analysis combined results from 53 studies conducted in 17 countries, involving 226,247 participants. The overall prevalence of gaming disorder was 3.05% (95% CI 2.38–3.91), which represents a reliable range. When only studies with stricter sampling criteria were considered, the rate dropped to 1.96%. Large differences among studies stem largely from the specific questionnaires used. Small sample sizes and low threshold scores also tend to inflate reported rates. Another study examined actual gameplay data from 38,935 players over six weeks, comparing it with self‑reported happiness levels; it found virtually no evidence that gaming time affects happiness. Chinese regulations require game providers to limit minors to one hour of play each day on Fridays, Saturdays, Sundays, and holidays, from 8 PM to 9 PM (effective 2021).

Evidence grade: B

Sources:Stevens MW, Dorstyn D, Delfabbro PH, King DL. (2021). Global prevalence of gaming disorder: A systematic review and meta-analysis. Australian and New Zealand Journal of Psychiatry, 55(6), 553–568. https://doi.org/10.1177/0004867420962851；Vuorre M, Johannes N, Magnusson K, Przybylski AK. (2022). Time spent playing video games is unlikely to impact well-being. Royal Society Open Science, 9(7), 220411. https://doi.org/10.1098/rsos.220411；国家新闻出版署 (2021). 关于进一步严格管理切实防止未成年人沉迷网络游戏的通知（国新出发〔2021〕14 号）. https://www.gov.cn/zhengce/zhengceku/2021-09/01/content_5634661.htm

Notes: This grade is assigned because the prevalence figure varies widely depending on the questionnaire used, and the happiness study followed participants for only six weeks. The main downside of excessive gaming is that it often displaces sleep and outdoor activity. Specific limits on sleep are outlined in Section 10 (Sleep, Homework, Physical Activity); outdoor time requirements appear in Section 4 (Two hours of outdoor activity daily). Screen time limits for non‑educational use are detailed in Section 5 (No more than one hour per day). Issues related to in‑game purchases and refunds are addressed in Section 5, Item 9 (Children making in‑app purchases). If a child’s academic performance, sleep quality, and family relationships all deteriorate despite repeated advice, a visit to a psychiatrist or pediatric psychologist is advisable. The primary beneficiaries of these guidelines are the children themselves.