Being disabled myself I get it.
The problem is that these are the kinds of individuals who would be inclined to try and enforce themselves such a limitation for only those who can prove a need.
I was among the first generation of hunters/fishermen that suffered because of all the damage the idiots on their dirt bikes were doing going off trail in NM and CO resulting in the closures preventing any motorized transport at all. I'm fortunate that most states will allow the disabled to at least ride a horse or mule even in "walk in only" areas.
Before the closures this is what we rode. No, we never took them off trail and I've never found anything with two wheels that can do the things we did with the Trail Breaker.
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You would not believe what you could haul with one of these and a little two wheeled trailer or sled.