Disadvantages of Homeschooling: Lots of homeschooled kids have much better social skills than unhomeschooled kids!
My children are homeschooled, and they are the friendliest, most well-adjusted kids I know!
They can socialize with anyone of any age, and regularly do.
Just last night I got to watch them interact with an older couple of another culture and language, and was so proud of their skills.
I was recently at a party for middle aged boys from a very expensive private school, and I COULD NOT believe how incredibly lacking they were in social skills.
They couldn't take their eyes off one screen or another, I didn't hear one child say thank you to the hostess for the wonderful party, they were rude to each other as well as to the adults (whom they basically ignored), and they were extremely cliquish.
I feel the socialization argument against homeschool is VERY weak.