I went on a tour where I accepted to share a room with another lady I had never met before. I had a wondeful pairing. Some are less lucky. I brought ear plugs with me in case the other person snored (I don't snore). Beside sharing the room, we agree to not share anything else during the day. Each one of us would do whatever they wanted. It worked perfectly. I would do it again. Being with a group of people, I found it easy even easier to mingle than when I travel with a partner
.... Try it once and see!