First it’s more dangerous, the car example is supposed to ask/show more dangerous than what, everything is dangerous and many factors define how dangerous something is, the it’s dangerous full stop statements don’t take this into account.
You're right, this is exactly what this is about - the risk factor. To draw back to your car analogy that you seem to be so fond of.. yes getting in a car every day is a dangerous activity. However the extent of the danger and risk involved can be altered and controlled greatly.
E.G.
Scenario A: Small child is travelled in a car, unfastened, with no restraints/child seat or seatbelt. Let's say just for good measure the car is an older vehicle with no modern safety features and is driven at speed and recklessly.
Let us compare this to Scenario B: A small child is travelled in a car, restrained in a modern safety compliant child seat. The car is a modern vehicle, fitted with traction control, anti-lock braking system, airbags, safety-glass, crumple zones etc. And lets say the car is being driven at a sensible speed and with caution.
See just how different the risk factor is in each situation?
Now imagine car driver A announcing "Driving is a dangerous activity, so are lots of things in life". But see just how much different the risk factor can vary given suitable precautions?
In my humble opinion this is how I see the Buddy Seat. Yes riding is a dangerous activity, but I do not see that as a suitable reason to not take any precaution possible to lessen that risk factor. Yes life is dangerous, it would be an extremely boring existance if we were never to take risks, but why heighten that risk so greatly for such little pleasures?
Children and animals are notoriously unreliable. A friends daughter is learning to ride at the moment and regularly 'forgets' to hold on or do as she is told. Luckily there is someone there to re-balance her, and even if she were to slip off it is only a couple of feet to the ground from the small pony she rides. I dread to imagine the consequences of a small child tumbling from a larger horse, and perched behind you in such a way makes it almost impossible to supervise or assist them in any way.
Second it puts pressure in the weakest part of the horses back and that’s bad for all horses full stop, the cavalry example and scientific study into exo-muscular systems are supposed to show how this is not always the case..
I have nothing further to add to this point. There is significant substantiated evidence from leading veterinary authorities, that any weight or pressure on the lumbar region of the horses back should be avoided. If you choose to ignore this in favour of a cavalry practice that was used 200 years ago, that is your perogative.
The vaulting example that has been put forward for consideration is a modern example of how pressure greater than a small child is put in this area of the horses back which does not cause the issues which has been suggested are unavoidable..
Do you know this?