Though many parents of children with an ASD will perceive that their child is unable to walk due to behavioural problems, it is very unlikely that they will qualify for the higher rate of the mobility component via this route. This is because the route relates exclusively to physical problems with walking in cases where a child is physically unable to take a single step by putting one foot in front of the other.
Problems with poor motor co-ordination, spatial awareness and dyspraxia would not be sufficient enough to pass this test, though they could be taken into account for the 'virtually unable to walk' test. The 'virtually unable to walk' test is aimed principally at those with severe physical mobility problems, so it is unlikely even that a child with one leg would pass this test if they could make progress on foot with the aid of an artificial limb. Therefore, it is more relevant for a child with an ASD to concentrate on the next criteria, that of being virtually unable to walk.