Reminds me of me trying to explain the difference between can I and may I when I was a teacher.
My son is on the autistic spectrum.
As a primary school pupil, [with support], his tendency to be literal in the extreme taught his class teacher a good lesson [so she later recounted]
An example being, he would be sat away from the others in a corner with his support, basically doing his own thing.....
The class teacher would ask him if he'd like to come over & join the others for a story?
He would reply, 'no thank you!'
Now, some may have found this response to be bordering on 'bad behaviour'....but his teacher discovered that, if she simply told him to 'come & sit over here with the others,' he would do so quite obediently.