You can see why Amazon's efforts suck just by using it. That isn't to say I defend Steam, or Epic, or GOG, or UPlay, or Origin, or Battle.net, or Microsoft Store because they all suck. They suck for existing as separate things that all do the same thing but each eating 500Mb of space on my computer.
The ideal situation would be a federated platform where everyone shares a single sign on, everyone shares the same update, backup & restore mechanisms, everyone can join the same lobbies and matchmaking. But that's too sensible.
The chances of America charging these parents is zero. And this poor kid is just a herald of of things to come - people dying of preventable, contagious diseases because morons and kooks think vaccines are some kind of left wing conspiracy.