[63]

I don't see why it can't be as easy as Multiplayer -> Host -> Select World. The average player shouldn't need to download a server jar, accept a eula, edit the config, run the jar with command line arguments for ram allocation, and set up port forwarding just to play block game with their friends.

[Quillbert182]

It is that easy, if you're willing to pay Microsoft a monthly fee. If not, then you can also use the open to LAN button on any world, but that will also require port forwarding.

[pie_flavor]

It is as easy as selecting the realm from the Minecraft Realms menu.