My DC who is an only child has recently become friends with some kids in the immediate neighbourhood which I'm really pleased with as it's nice for him to have some friends who are just next door.
The trouble is that these kids seem to have no boundaries whatsoever - they just turn up at any point during the day (any time at weekends or after school) and if I say X can't play right now they don't take no for an answer, just keep pushing it. If they're in my house they do things like open my fridge and help themselves to whatever is in there, if I'm in my bedroom they will just waltz into my bedroom and ask if I will play a game with them etc. It's not that I mind them being in there or having food from the fridge, but I have always taught my DC that they must ask to do these things in other people's houses. If we leave the front door unlocked they will just open the door and come in.
They are 8 and 10. Normal or not? I don't know if my expectations are unrealistic.