I agree with @jaquo, and related tips/advice.
Also, it’s important to remember that different people absorb information different ways. Many people can remember what they read, but others don’t because they learn/remember things better if they hear the information. So it’s also good to go through the House Rules on check-in if you do a personal greeting.
Most guests don’t want any drama. They’re there for holiday or to visit family, and so they don’t want conflict either. However, we’ve all been taught that if you’re not sure about something then to ask, and others the “don’t ask, don’t get” culture is prevalent. Questions aren’t meant to offend normally.
We interact with people who don’t have the same things we have all the time. Some have more or less. Most people don’t give this a second thought because it’s just a fact of life rather than something personal against them.
If you need any more help dealing with the conflict or other issues, please come back to this forum and you’ll get assistance.