I have been using Brave for a few months now and love it! The payment system improved so much a bit ago when more granularity was added to the monthly payment. This would be great for parents to set up for their children but if the child found his way to the payment options it could be accidentally changed.
If their was simply a password system (or maybe something with the Brave Sync feature) that allowed for it to be locked and unlocked that would be enough. Adding this feature would be a great point to use when moving to mass adoption considering everyone has children sometime, any they may consume more content than any other age group.