Source: Matt Brown | Windows Central
If you have a family group set up with your Microsoft Account and for Xbox, then you'll already know about some of the great features for controlling what your kids have access to. But one thing they may want to use is actually hidden behind a setting you might not know exists.
Crossplay.
This is specifically referring to cross-network play, that is, playing with friends outside the Xbox Live walls. When it comes to titles like Minecraft and Minecraft Dungeons, it's perfectly possible for your kids to play with their friends on Nintendo Switch and PlayStation, but to do so, you'll have to give them the magic permission first.