I often wonder how things would have been different if the Nursery nurse had been a little more forceful in her opinion, other than saying to me, "DD1 tends to play alone, doing the same task over and over and is very focused".
However, I am currently running a parenting course for children in the local enrishment group, which provides services mainly for children with SAL delay. One of the parents tells me alot about her child wanting to always be alone, an obbession with trains and cars, lining things up ect.
I know i cant say anything, but wonder if a few hints might be worth consdiering.
We were very lucky with dd2, who got help from 2 years old, and its made a huge impact on her.