Hi @arialvetica! And other hosts - nice to know there are more of us!
Yes, as @Sarah_Warren said, my guests do sleep in a basement apartment, but they enter the home through our front door, and have breakfast upstairs (in their own space).
We have had excellent experiences. Not perfect, but excellent. Many of our guests love interacting with our kids. (Mine are 16, 15 & 11). Many guests choose us just so they can see and American family. My son is a social hummingbird and makes friends with many. Sometimes he has the guests’ children (or even adult) playing wii or chess, or other game with him. My daughters are not as social but enjoy participating in the hosting in other ways, such as setting up the breakfast table, etc.
We have a large paper map and the guests put a star on the map of where they are from. I think my kids have learned a lot, and have the experience of hearing so many languages spoken.
My opinion is that, since this IS a family arrangement we eliminate people who are really crazy and coming to party. We do have some groups of younger people who will come in later and sleep late, but that doesn’t bother us.
The craziest thing was a pretty little missy from Belgium who came upstairs to shower (our guests now have their own) wearing a tiny t-shirt and a thong. She hadn’t brought a towel so I brought her downstairs to show her the towels and the - ummm…bathrobes. Didn’t make a difference. Walked around in front of my son. We still laugh about it to this day. Besides that, we’ve had some loud guests, and some leave beer bottles around (but this is like a little apartment) but even that is just a good lesson for my kids.
Just last night we sat around late with a family from The Netherlands. We talked about everything and learned about horse ball (https://www.youtube.com/watch?v=z-xYJV51FxQ) and the popularity of watching darts on TV. And about politics, etc, etc. It was fun watching my kids participate in the conversation.
So for us, it has worked great. You can always start out slow and see how it goes. I assume you have monitors in their rooms, or some way to keep an ear out for what’s going on? Is the guest room in the middle of your family area?