But the point is that you shouldn't encourage staying together, you should encourage working out differences, because they should not stay together if they can't work out their differences, but they will generally stay together anyway if they do manage to work out their differences.
Once the children are born, the happiness of them takes over your differences with your spouse. Thus the pressure to make the family work as it is. I think it makes sense as long as there are not unworkable differences or violence, therefore IMO societal pressure has worked.
I can't figure out whether you are agreeing or disagreeing with me.
I said people should not stay together if they can't work out their differences, you say they should not stay together if they have unworkable differences ... which seems to be the same idea?
But then, the overall impression is not like you are intending to agree with me.