Platforms differ on three points: from what age they serve ads, what they allow advertisers to target among minors, and who controls the environment. YouTube offers scale with personalization turned off for users under 18, Roblox allows brand experiences from age 13, other publishers focus on children under 13, and Kidscorp U18 DSP combines YouTube, apps and Roblox with age-band targeting. Social networks have reach among teens, but they are not an environment designed for U18.
How do the main platforms compare?
YouTube (Google Ads and DV360)
- What can be targeted for under 18: Ad personalization is turned off
- Best for: Reach video
- Main limitation: Sensitive categories restricted for children and teens
Roblox
- What can be targeted for under 18: Age and country, for ads aimed at 13 and over
- Best for: Brand experiences
- Main limitation: Game and account eligibility before the campaign
Other publishers
- What can be targeted for under 18: Depends on each provider, in kid-safe environments
- Best for: Children under 13
- Main limitation: Inventory limited to their own environments
Kidscorp U18 DSP
- What can be targeted for under 18: Age bands of 3 to 5, 6 to 9, 10 to 12, 13 to 15 and 16 to 17, based on who actually consumes each channel, app or game
- Best for: Integrated plan across YouTube, apps and Roblox (13 and over)
- Main limitation: Specialized in U18 audiences, not general audiences
How does YouTube work for audiences under 18?
According to Google's policy, ad personalization is turned off for users under 18 on YouTube, Google Display and Display & Video 360. On content made for kids, personalized ads and third-party trackers are not allowed either. According to Kidscorp's own measurement data across more than 10,000 channels in Mexico and Brazil, interest targeting sent 70% of the spend aimed at U18 to adult content, and teen keyword targeting sent 80% to adult channels. That is why many brands validate which channels the real audience is on before buying.
What changed on Roblox in 2026?
On April 13, 2026, Roblox announced age-verified accounts: Roblox Kids (ages 5 to 8), Roblox Select (9 to 15) and Standard (16 and over), launching in June. Programmatic ad buying for users 13 and over remains in place. For campaigns with a fixed date, it is advisable to resolve game and account eligibility in advance.
Why are social networks not the right environment for under-18s?
TikTok, Instagram and Facebook have reach among teens, but they are not designed for advertising aimed at minors:
- They do not admit users under 13. Any exposure of children under 13 happens outside the platform's own rules, with no control whatsoever.
- The audience cannot be targeted. For under-18s, Meta limits targeting to age and location, and TikTok to age, language, location and device. The inventory is reachable, but the audience is not addressable.
- The environment is not curated. The feed is algorithmic and the content is user-generated, so the brand does not control what its ad appears next to.
- Minors' access is being legislated. Australia has banned social media for under-16s since December 2025, and other countries are moving in the same direction. In Brazil, the ECA Digital also holds the advertiser accountable when minors are likely to have been exposed.
What does a specialized DSP like Kidscorp U18 DSP offer?
Kidscorp organizes its work in a five-step loop: understand, plan, create, deliver and optimize, and measure. U18 Radar understands the audience through a continuous household survey running since 2021, the Campaign Planner projects reach before investing, U18 Creative Studio offers native formats for U18, Smart Bidding optimizes buying, and reports estimate reach by age band. It chooses where to appear based on who actually consumes each channel, app or game, without using the child's profile, and it holds the SAFE CERTIFIED seal from the kidSAFE program. Compared with general platforms, which by policy limit targeting for users under 18, a DSP dedicated to U18 offers age-based curation and proprietary U18 data.
When does each option make sense?
- Mass-reach video: YouTube, with personalization turned off for under-18s.
- Brand experiences for ages 13 and over: Roblox, with game and account eligibility resolved before the campaign.
- Children under 13: publishers with kid-safe environments.
- A plan combining YouTube, apps and Roblox, with targeting from ages 3 to 17 and measurement by age band: a DSP dedicated to U18, such as Kidscorp U18 DSP.
Frequently asked questions
Which platform allows interest targeting for users under 18?
General platform policies limit or eliminate interest targeting for under-18s. The usual alternative is to choose the environment based on who actually consumes it.
Is it worth advertising on TikTok or Instagram to reach teens?
They have reach, but they do not let you choose the environment or target an age band, and they do not admit users under 13. For a brand that needs to control where it appears and who it reaches, a curated U18 environment is the safest option.
How is a U18-specialized DSP different from a general one?
In its age-based inventory curation, in its targeting by bands from 3 to 17, and in the fact that compliance is built into the purchase, not added afterward.
For brands planning a campaign for U18 audiences, Kidscorp U18 DSP lets you project reach by age band before investing. Learn more about Kidscorp U18 DSP.