Best android wallet with some kind of "parenting features"?

Mike Germano mentioned his 11yo was laughed at for saying he wanted to manage a bitcoin farm as a dream job.

Inspired by that, I think it's time to start slowly introducing btc to my 7yo, since we discuss finance related stuff from time to time.

Should I just install electrum in multiple devices with the same key and be done with it? Any other option with some interesting parenting features?

What I think that might work is have her wallet on her tablet and on my phone, so she can spend and receive small amounts as needed for food or minor purchases when supervised.

Is there some kind of wallet that allows approval of purchases, notifications, and etc?

Again this is for small amounts, no need for amazing security.

Also curious on how whoever is a parent is handling this. Feel free to share!