happy's situation, of course, does not fall under the same logic - for a child with special needs who may not have the ability to cope in the real world regardless of social interaction, the best thing is to live their lives to their own fullest potential - and sometimes that just means being given the attention they need instead of sat in the back of a classroom and ignored.
My son is high functioning autistic, meaning if you see him you will see a regular kid that talks, reads, do math like any other child. It is his social aspect that is awkward. He is extremely social and the perfect victim for a bully, hence we decided homeschooling is the only option. He is a 9 years old boy but emotionally a much younger child.