I know that in Sweden and other Scandinavian countries, it’s common for children who visit their friend’s house to be left out at family meal times ie if your friend comes over and it’s dinner time, the parents expect the friend to stay in another room or go to your bedroom while the family eats.
Is this common in your British household too? If your child brought a friend around, would you be willing to offer them a meal (even if it wasn’t a pre-arranged visit in which you’d expected to serve them a meal), or would you tell the friend to wait in another room?