My child has a educational asd classification. I agree schools can be quick with the label. But what I found they are even more quick to do is place the youngest children in the most self contained pre k classrooms even when the ASD traits are not so obvious and severe. If I had not been a informed parent and denied the placement suggested at first I know my child would not be where he is today.
3 years later and mainstreamed in K he has been identified twice exceptional. His private psych. says yes to him being an aspie or what is now just asd. But very mild so no need for any formal diagnosis. I have the documentation if we decide to pursue it later.
I noticed a tend of parents wanting a asd classification instead of emotional behaviour disorder for their kiddos. They think this will get their child more services and keep them mainstreamed.