My DS is in Year 8 at a state school and recently had an MFL trip abroad for a few days. I just met with a friend who has DD in Year 8 at an independent school, and she said DD had been on an exchange trip - she's spent a few days with a French family and then a (different) French child had spent a few days at their house a few months later. It made me wonder whether state schools still do exchanges or whether safeguarding is too much of an issue.
My friend said there were no specific safeguarding checks - she just had to sign something to say that the visiting child would not be left alone with any male family members, which seems a bit bizarre in this day and age (apart from the inherent assumption that it is only men who are a danger to children, it would also exclude any single parent families where there was no mum around).