Preparing Your Autistic Child for Adulthood: What to Do Before They Turn 18

At some point — usually in the middle of a hard week — the question arrives: What happens when they age out? It comes with a specific kind of dread. At 18, your child exits the school system. The services that have surrounded them for years — the IEP, the school-based therapies, the aide, the daily structure — stop. They age off pediatric healthcare. They become adults in the eyes of every system, whether they're ready or not. The specific fears cluster around the same things: housing, employment, benefits, healthcare, guardianship. And they're all valid. Here's the truth most families don't hear until it's too late: the systems that support autistic adults are slow, complicated, and heavily waitlisted. Waiting until your child is 16 to start this process is already late. Waiting until 17 or 18 can close doors that would have been open with earlier action. This is not meant to scare you — it's meant to give you the one real advantage available: time. This article walks through every major piece. It's not a complete roadmap — every family's situation is different, and none of this substitutes for a benefits counselor or transition specialist. But it gives you the vocabulary and the starting points to actually begin.