Control which items can be synced by the device

Hello BKLyoBvt​! 👋

Thanks for reaching out! If you're using 1Password Families, then I would recommend using a guest account for this purpose: Share with guests in 1Password Families

You can share an individual vault with the guest account and then sign into a device like the iPad for the kids using that guest account. This will give the iPad access to items in that individual vault but not to any other items. 

I hope that helps. 

-Dave