I am the poster child for the oldest child. However, (and I don't mean to offend anyone) I would put only children in their own category. I know a bunch of only children who aren't responsible at all... (and they whine about what they want instead of making it happen for themselves)
I agree with you there. I think some only children don't have the social skills as your typical kid.
Yeah that is very true in my opinion. I know quite a few only children and the majority have no social skills.