number5 wrote:
My son began lining up his trains at around age 2. He then soon began lining up other things like crayons and books (on the floor in a long line across the room). At the time we didn't think much of it, we just thought he liked things in order and what's the harm in that.
He is now 4 1/2 and diagnosed with AS. Looking back, I don't know how we missed the signs, but he's still young, probably not a big deal. Anyway, my question is does the enjoyment of this particular activity generally go away as the child gets older? My son is still often lining up his toys (usually his cars) and his new favorite thing to do is to make a "show" where he sets his toys up as if it were a scene from a movie, but then doesn't move them once arranged.
I don't mind him playing this way if it makes him happy, but it is pretty much all he does with his toys. Once someone else wants to play with him, he gets mad if his toys are moved. It worries me because this type of behavior can make it quite difficult for him to make friends. Anyone else have any experience with this or advice to offer? All replies are welcomed and appreciated

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Could have written this post myself. Describes my son exactly, except with him it was hotwheels, and then his Thomas trains when he started collecting them. He's currently 4.5 years old too. We were told to get him tested for AS when he was 2.5, until then we didn't think there was a problem, except for the speech delay.
The Thomas trains are his favorite, he reinacts from the shows, he has specific orders they must be in, Lord help his little sister if she messes with them lol. He didn't start imaginary play until he started watching Youtube and people and kids playing with thier Thomas trains.
Yes it makes them happy and yes it can cause issues with other kids, BUT you would be amazed at these little guys. I thought my son would have issues at school, but I've been told that at school he's not the nazi with toys that he is like when he's at home.