Here is my referral for GoHenry if you are thinking of using it for a child. My two have used it for about three years now. I love all the notifications I receive on their spending, which lets me see where they are and what they’re up to! I can also restrict their spend, ie. they may not be allowed to spend online, and they have their own contactless customisable cards!
check.out.gohenry.com/2dLxx