(Gameplay) Community placed adventures

I was reading on a topic about buying adventures and knowing Minecraft Earth is a free game they can do it. But I propose that players can place 1 adventure that is open to all players for 1 hour. Note that you should be able to see the time that is left and there should also be a map to see where it is. This can allow for easy adventures and you can meet new people. Now I will consider that some people cannot be trusted as in people can take advantage of this and go on a murder spree. I would not like this to happen. So you can do this the way I want it or in a way do it like Pokémon Go and have landmarks. I guess that means you can pay where you want adventures then take a picture of the landmark. We would probably be able to use the adventure once a day but that doesn’t bother me. Thanks for listening to this point if you have.