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”.
- Quality filter — check rather than enable. X says it “will be on by default” for a new account, and it lives in the notifications settings, not under Privacy & Safety: open the Notifications timeline, then the gear or Settings, then the quality filter toggle. It screens duplicate and automated content, and deliberately does not filter people your child follows.
- Advanced filters — in the same notifications settings, and more useful here than the quality filter. You can switch off notifications from accounts that are new, that do not follow your child, that still have a default profile photo, or that have no confirmed email address or phone number. For a teenager being approached by strangers, that is the setting that does the work.
- DMs › Message requests from verified users only, or off entirely.
- Location — off for tweets.
- Personalized ads — off.
- Two-factor authentication on, using an authenticator app rather than SMS.
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 X and Threads are harder than Instagram or 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.
What was checked, and when. The quality filter, its default and the advanced filters verified against the vendor’s own documentation on 2026-09-08. Not reached in that pass: photo tagging and DM settings.
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”, check the quality filter in the notifications settings, where X says it is on by default for a new account, and use the advanced filters there to mute accounts with no confirmed email or phone that your child does not follow, 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.
When parental controls change
App privacy settings change quietly, usually in the app's favour. Roughly monthly we send new guides, changes to controls like these, and scams worth knowing about.
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