With the current Minecraft monthly updates, paper is always behind on the latest features. There are also minor problems that paper introduces with its performance improvements.

Years ago paper was critical for a good Minecraft experience, but a newer PC (newer than 6 years old) runs great on vanilla.

So if you’re planning to have the kid play on Switch or something like that, it’s not going to work.

You can run Geyser (a modified Minecraft server) to let bedrock clients play on your Java server.