world keys and other

you should be able to share keys to your world with friends! so your friends can join at any time but limited to 3 because that would ruin the point of realms right? how it would work is that you would click on your world and in the multiplayer section of settings you should have a button that says "add trusted friends" or "give access" and when you click on it, it would show a list of friends you have like your social! and when you click on a friend it would ask for conformation and once you accept now your friends should be able to join!!! and for the others part you should add another way to get gunpowder that isn't from a mob, like in real life it should be sulfur powder x2 (you should add)  and 2x charcoal and now you have 5x gunpowder! thank you if you read this and i hope this might help someone!!!! (bedrock) -N30N SL4Y3R