How much YouTube is too much? Screen time by age

"How much is too much?" is the question every parent of a child with a tablet asks, and the honest answer is that the number matters less than most people think. This post sets out what the main health bodies actually say, then focuses on the harder problem: making whatever limit you choose stick without a nightly fight.

What the health bodies say#

The most-quoted guidance comes from the World Health Organization and the American Academy of Pediatrics. The specifics are worth knowing, with the caveat that guidance gets revised and you should check the latest from your own health service.

• Under 1 year: the WHO's 2019 guidance for under-fives says screen time isn't recommended. The AAP's long-standing advice is to avoid screens other than video calls before about 18 months.
• 1 to 2 years: the WHO says sedentary screen time (TV, videos) isn't recommended. The AAP says that if you introduce screens at 18 to 24 months, choose high-quality programmes and watch together.
• 2 to 4 years: the WHO says no more than an hour a day, and less is better. The AAP's widely quoted figure for ages 2 to 5 is up to about an hour a day of high-quality programming.
• 6 and over: the AAP advises consistent limits and making sure screens don't crowd out sleep, physical activity and other healthy behaviours. It doesn't give a single number.

Both organisations stress the same thing underneath the numbers: what a child watches, and what it replaces, matters as much as how long. An hour of a well-made science programme with a parent is not the same as an hour of autoplaying videos alone.

What UK paediatricians suggest#

In the UK, the Royal College of Paediatrics and Child Health looked at the evidence in 2019 and deliberately did not recommend a fixed number of hours for children. Instead, it suggested parents ask questions such as whether screen time is getting in the way of sleep, physical activity or family time, and whether they can keep it in check.

That's a useful frame. It moves the question from "is 90 minutes too much?" to "is this working for our family?"

What to do with all that#

The evidence points to a practical approach.

1. Start with the youngest guidance and loosen it with age. The earlier the habits, the easier they are to keep.
2. Choose the content before the clock. A short session of something good beats a long one of something random. That's a large part of why we like allow-lists: you've already chosen what's on offer.
3. Watch the trade-offs. Look at what the screen is replacing. If sleep, movement or meals are suffering, tighten the limit. If not, you have room.
4. Treat bedtime as the hard line. Screens in the hour before sleep and in bedrooms overnight are where the evidence is most consistent.

Five ways to make a limit stick#

Setting the limit is the easy part. These make it hold.

Decide before the screen comes out

A limit that's negotiated mid-video becomes an argument. Agree the length and the time of day in advance, and say it out loud each time: "Twenty minutes, then we're doing something else."

Let something other than you end the session

It's much easier for a child to accept a timer ending than a parent switching off their video. Use a timer or an app that enforces a daily budget so you're not the bad guy. In SafePlay, for example, you set a daily limit in minutes for each child, and the app stops when it runs out.

Make the limit predictable

A child who knows the limit is 30 minutes every day copes better than one who gets 20 on a good day and 60 on a bad one. Weekends can differ, but keep each day consistent. SafePlay lets you set per-day overrides (say, longer on Saturdays) so it's still predictable.

Plan the landing

Ending a video mid-story feels awful. Give a five-minute warning, let them finish what they're watching where you can, and have the next thing ready: a snack, a game, going outside. A routine at the end helps more than a rule.

Decide in advance what "five more minutes?" gets

It'll be asked. If the answer is sometimes yes, decide what "yes" depends on, such as chores done or a good evening so far, and stick to it. If the answer is always no, say so calmly and don't reopen it. Children push hardest on limits they think might bend. In SafePlay, when the budget runs out the app offers a single "Ask for more time" button that sends you a request. You approve or decline from your phone, which turns a nightly argument into a quick decision.

A gentle word on guilt#

Nearly every family has more screen time than they planned, some days. The aim isn't a perfect record. It's a household where screens are mostly chosen, mostly good, and mostly kept in their place, and where your child can tell you when something's wrong. If you're broadly there, you're doing fine.

For the broader picture of controls by age, see our parent's guide to making YouTube safe for kids.