[jcynix]

Exactly. And the "sensor size myth" is nothing a kid should (or would) care about.

There are some very good YouTube channels talking about micro four thirds cameras, which are still a good choice, especially when used as a camera to carry every day.

Disclaimer, own and use full frame, APS-C, and even Ixus and Powershot cameras which all can produce decent images if one knows how and when to use them. Oh, smartphone, of course.