It was a good idea to introduce about money to our kids since early. But is the device has good durability as we know, kids just a kids. They could damage it within hours! And is there any warranty in case of such damage? or let's say there is no replacement, but if we buy a new device, will the funds stored on the previously device be moved? But, this project will be awesome for sure, I fully support!
What do you mean exactly? This is a electronic wallet, how are anybody able to "damage" it? I think you should go through the whitepaper so you fully understand the concept.
I'm asking because I see on whitepaper that the 'piggy-wallet' is a
part physical, part digital wallet, and also can be hands-on playing device so it has device for the children called 'Pigzbe Pink'. which it potentially damaged, specially by kids. Please see on whitepaper

I asking about the physical device, not the wallet as digital. and I agree with the comment below. Thanks

I think the fact that the cold storage is connected to the blockchain makes it a little independent of physical damage since transactions are stored permanently on the blockchain, the savings should be safe