Signing up for a Sim Only plan for your child is one thing, setting it up safely and cost-consciously is just as important. This step-by-step guide covers the essentials in five steps.

Step 1: sign up under your own name

A minor can't enter into a binding contract themselves, so the plan is always in a parent's or guardian's name. That also means you're responsible for the bill — all the more reason not to skip the following steps.

Step 2: choose a data bundle that fits the age

Don't jump straight to a large or unlimited bundle. For most children up to around 12, 2 to 5GB is more than enough, especially now that phones are no longer allowed in secondary school classrooms. You can always increase the bundle later if it turns out to be too small.

Step 3: turn on a hard data cap

Check with the provider whether there's an option to automatically stop mobile internet once the bundle is used up (sometimes called a 'data ceiling' or 'cap'), instead of charging per MB. If that option isn't available, at least choose a provider with a fair-use model that reduces speed instead of letting the bill run up.

Step 4: set up parental controls on the device

  • On an iPhone: go to Settings > Screen Time to set screen time limits, app limits and content restrictions.
  • On Android: install Google Family Link, link your child's account, and set up screen time, app approval and location.
  • Does the provider have a special kids variant (such as the KPN Kids Sim)? Then also activate the extra controls on apps and premium numbers that the provider itself offers.

Step 5: make clear agreements with your child

Technology alone isn't enough: talk with your child about why there's a data cap and screen time, and what is and isn't okay online. That works better than relying purely on restrictions, and it prevents frustration when a limit is reached.

Not sure yet what age and bundle to start with? Read also: Sim Only for your child: what age, and what to watch for?

Want to know first which providers have a children's option? Read also: Which providers have a Sim Only plan specifically for children? Compare your options

Conclusion

With a data bundle that fits the age, a hard data cap and parental controls on the device itself, you avoid most surprises with a Sim Only plan for your child. Take the time to set this up properly when signing up, rather than sorting it out afterwards.

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