Every manufacturer has to have this RIO system in place, and unfortunately it is migrating
into the CUTS with mower decks.
Some have mentioned it's more for legal reasons than safety, and I would venture
that is probably the biggest driver for the system. Transfer of Liability.
Once you put a switch like this on a mower, then the operator has taken
the liability of mowing in reverse away from the manufacturer and put it
on him/herself. Whether they actually look back or not doesn't matter.
There are many stories of the injuries caused by lawn mowers, both going
forward and reverse, kids falling off, people rolling down hills, all tragic.
Unfortunately, a switch like this does not fix the root of the problem, which
in many cases seems to be mostly caused by poor judgement of the operator.
What are the other manufacturers systems? I have seen a key switch with a
RIO position, again, nothing to do with forcing the person to look back, just
acknowledging the fact that when they back up the blades are turning. It still
comes down to the operator. NO different than being in a car/truck/boat/plane/motorcycle/snowmobile.
With any driving situation, there is a level of responsibility that comes with it and unfortunately
injuries/death are the result of many folks lack of it, even if only for a split second.