My son is nearly 3 but is very delayed in his development. This is currently being assessed by a paediatrician. Because of this delay he is still very wobbly on his feet and can't walk long distances however he is getting to big for his buggy. His legs spill over the footrest and the straps only just go round him. Can anyone recommend a buggy with a decent sized seat that will last him til he is big enough for a wheelchair (if he needs one when he is older)?