Thanks for this info. It seems many of the kids I see in preschool have goals of being mobile and their parents prefer strollers to wheelchairs when they are very young.
When my DD was very little and had outgrown her 'regular' stroller at not quite 3 years old, a special needs stroller was what was recommended to us. (Strollers were smaller in those days and they just did not have strollers to hold kids who were older than 3).
Anyway, she did have goals of walking, so the OT, PT and everyone else was saying a special needs stroller was the way to go. We thought about it and decided on a wheelchair instead.
Cost was not all that much different. And, she was not expected to have enough walking skill to be able to walk more than short distances (at least in the beginning).
The biggest difference to us was that in a stroller, she would be dependent on someone pushing her because the stroller would be impossible for her to move by herself.
In a wheelchair, she could beging to learn how to move herself. Even though she was a tiny little girl in a very large wheelchair, she did learn to move it. She was not able to go long distances, but at least she could go.
There are some kids that a special needs stroller is a better choice for (example would be someone who is impulsive and has no safety judgement) but a lot of parents are probably not even given the choice and are just presented with the stroller as the only option. I have a feeling some of that may have to do with the biases of the person making the recommendation (i.e, "if I suggest a wheelchair, it tells the parents I don't expect the child to walk.") or the experience of the person making the recommendation (that is what they usually recommend).