2 ms·

But children spend a lot of time together if they attend nursery/preschool as well. And that does not seem to be producing the problem.

• breppp 11mo ago
  These children spent all their time with each other, including days and nights, for 18 years, having only a hour or two with their parents a day. It's called the Westermarck Effect, but with anything in Psychology you can take it with a grain of salt