I have 2 children, 4 & 7. We have many nieces and nephews of varying ages 3-7 so not too different. However when they come to visit we have to child proof our house. Nieces and nephews will purposefully break toys, use them as weapons, tear up jigsaws and throw electronics.
I’m happy that my children will generally play nicely and whilst they will obviously squabble they have been taught to look after their toys or they go away or end up in the bin and not replaced (if broken). But when nieces and nephews come around we have to gather anything of value and hide it away. We also can’t leave them unsupervised so me or DH have to be with them all the time as their parents are happy to let their child/children destroy things because they’re only kids.
Ours love their cousins and live playing with them but obviously soon get bored of having their things trashed and want the house back to themselves.
How would you deal with this? We’ve reduced the amount of time we spend with them but it’s still so stressful.