A couple of years ago we hosted our (18 year old) daughter's friends for three weeks in our home in Italy. We cooked for them, took them sightseeing, took them to the beach, etc etc. They didn't wash up a single time, didn't buy us - I don't know - an ice cream - as a token thank you, and after we had driven them three hours to the airport, turned their backs on us and walked away into the airport! I was furious but basically I'd let it go and forgotten about it. This year my daughter brought a different friend home (in the UK) for Christmas. We fetched her from the train station, cooked for her for 8 days, took them to the cinema, bought her Christmas presents so she wouldn't feel left out. She has spent her entire visit looking at her phone, like the previous guests hasn't offered even one time to wash the dishes or help out in any way. Today she got up at 2pm and has ignored the rest of us. Not a 'hello', not a 'how is everybody'. And yet again, not a single 'thank you'. She's leaving tomorrow and I am waiting to see if she says thank you for the visit to our home during which we have done everything we can to host her and make her feel welcome. I seriously doubt it. And to compound it all, our daughter doesn't seem to see anything wrong with this behaviour, or say anything to her friend(s)! It's on the tip of my tongue to say to her 'you know people normally show a little graciousness and gratitude after being offered hospitality' but ... I know that my daughter will be furious, and basically there's no point.