DS started Early Intervention toddler class when he was just over 2.5. He transitioned to the school district's special needs preschool a couple of weeks before he turned 3.
If he had been a typically developing child, I probably would have waited until he was around 4 to start preschool.
DS: age 9, my rare and extraordinary little man.
“Autistics are the ultimate square pegs, and the problem with pounding a square peg into a round hole is not that the hammering is hard work. It's that you're destroying the peg." - Paul Collins, Not Even Wrong