But after
Lets give only one example: the boy of two and a half years, with heavy spastic tetraparesis which is not capable to sit independently and cannot reach for a toy at all and to catch it.
What toys for it to choose?
Here the simplest answer: what he can play.
But after all he cannot play, in our habitual understanding, in any toys.
On the other hand, the level of development of the kid, including intellectual, is not defined by the motive violations which are available for it at all.
.