X (Twitter) & Threads: the parent’s guide
Both platforms are tough for under-16s. Here’s the lockdown settings and the recommendation.
X (formerly Twitter) and Threads
X is now an adult platform with weakly enforced age gates; explicit content is widely available. Threads (Meta) is newer and more restrictive but improving slowly. For anyone under 16, these aren’t really safe.
Age verification arrived in 2026 — and it is uneven
X now runs age verification to comply with the UK Online Safety Act, Ireland’s Online Safety Code, the EU Digital Services Act and Australia’s under-16 ban, which from 10 December 2025 requires X, Threads, Reddit, Twitch and Kick alike to block under-16 accounts.
What actually changed on the platform:
- Per-post adult-content warnings replaced the old generic sensitive-media label.
- Age gating on marked content blocks under-18s — and anyone with no birth date on their profile — from viewing it.
- Verification is tiered by jurisdiction rather than a single check at signup, so what your teenager encounters depends on where the account is registered.
Two caveats matter for parents. Enforcement is strongest where regulators are strongest, so a US account sees less of this than a UK or Australian one. And methods for circumventing the checks circulate widely — treat the age gate as friction rather than a barrier, and keep the settings below in place regardless.
Settings for X (under-18 account)
- Protect your posts — on (makes account private).
- Settings › Privacy & Safety › Content you see › Display media that may contain sensitive content — off.
- Settings › Privacy & Safety › Audience and tagging › Photo tagging — “No one”.
- Settings › Privacy & Safety › Mute and block › Quality filter — on.
- DMs › Message requests from verified users only, or off entirely.
- Location — off for tweets.
- Personalized ads — off.
- Two-step verification on (app-based).
Threads (via Instagram)
- Threads accounts are tied to Instagram. If the Instagram account is Private + Teen Account, much of that carries over to Threads.
- Direct replies from non-followers off.
- Content filter level set to strictest.
Why these platforms are harder than Instagram / TikTok
- The quote-retweet / reply mechanic amplifies targeted harassment faster than any feed platform.
- Political and ideological content reaches teens in unfiltered form.
- X’s “verified” marks are no longer a quality signal; scams use them freely.
- Both platforms let strangers reply publicly to any post.
Recommendation
Below age 15-16, block both apps. Between 16 and 18, allow with all above settings and a conversation about what gets amplified on these platforms.
Common questions
Is X (Twitter) safe for teenagers?
Below roughly 15 or 16, no — the recommendation is to block it. X is now an adult platform with weakly enforced age gates and widely available explicit content. Between 16 and 18, allow it with full lockdown settings and a conversation about what these platforms amplify.
Why are X and Threads harder to manage than Instagram or TikTok?
The quote-and-reply mechanic amplifies targeted harassment faster than any feed platform, political and ideological content arrives unfiltered, and both platforms let strangers reply publicly to any post. On X, verified marks are no longer a quality signal and scams use them freely.
Which X settings should I change for an under-18 account?
Protect your posts to make the account private; under Privacy & Safety turn off “Display media that may contain sensitive content”, set photo tagging to “No one”, enable the quality filter, restrict DMs to verified users or off entirely, turn off location on posts and personalised ads, and enable app-based two-step verification.
Does locking down Instagram also protect Threads?
Largely, yes. Threads accounts are tied to Instagram, so if the Instagram account is private and set as a Teen Account, much of that carries across. Then turn off direct replies from non-followers and set the content filter to its strictest level.