My ds has a lovely friend who I'll call Tim. Ds is 7 and Tim is 8. Both ds and Tim are really boisterous and have a lot of fun playing together. Tim's mum has mentioned he has developmental delay, he started school barely verbal.
This year, my ds and Tim exchanged Christmas cards and ds said to me "it is amazing Tim wrote my name and his own as well as the word Christmas all by himself even though he doesn't have a good brain, he must have worked hard". Luckily Tim was not there!
I said to him that Tim has a perfectly good brain and all children learn at different speeds. I reminded ds that he was really late walking and now walks just as well as Tim does. He responded Tim was "on the table for children who have a lot more to learn still because of their brains". I know no malice is intended here and he has absolutely no wish to make his friend feel bad.
What else should I tell him?