Is that really true? I hear it all the time.
Mia and I have been working on picking up objects and putting them into a box. Once the general concept was down it moved very very quickly to where she is understanding picking up many shapes and sizes and textures of objects and putting them in the box. I've changed the size of the box, the object, the location of the box, the location of the training session, etc and she seems very able to understand that 'put it away' means put the thing in the box. We did have some issue with toys because she'd want to play with them instead of put them away and would fixate a bit on them but that's a different issue than not knowing what to do.
^^ Just one example that makes me think.
Mia and I have been working on picking up objects and putting them into a box. Once the general concept was down it moved very very quickly to where she is understanding picking up many shapes and sizes and textures of objects and putting them in the box. I've changed the size of the box, the object, the location of the box, the location of the training session, etc and she seems very able to understand that 'put it away' means put the thing in the box. We did have some issue with toys because she'd want to play with them instead of put them away and would fixate a bit on them but that's a different issue than not knowing what to do.
^^ Just one example that makes me think.