Cousins at War....

[ludwig 27]

My daughter has thee sons, aged 12, 9 and 4. My son has one son, an only child, aged 7. These are all well adjusted children and whilst they play happily with all other children, behaviour problems arise when they all get together. Is there any specific reason for this as it does stop family get togethers being pleasurable.

[trogette]

Can I suggest you, your daughter and your son reading Siblings Without Rivalry to get some ideas why they might 'play up' when they're together?