My niece is 7, I have a brilliant realtionship with her. I'd love for her to come and stay for a weekend. My sister thinks she's too young.
Now fair enough, not going to argue with my sister, her daughter so her choice. But how old is old enough?
Btw, few more facts. My niece is a capable comfident 7 year old. The oldest of 3. They live a four hour drive away and we've offered to pick her up and take her home. My sister has never left any of her kids overnight, not even with family.