Do you have a best friend? How about your kids?
How long have you known them? How did you meet them? Do they have kids too, and if so do your kids hang out together? Have you ever fought with them?
Same question about your kids, do they have best friends? How long have they known them and how well do they get along?
Do you think the way you carry friendships, especially close ones, has an effect on your child(ren)?