Sometimes people fall down the stairs in their own homes. That doesn't mean the government should mandate everybody to wear helmets at home does it?
A measure needs to be in proportion to the actual risk it seeks to mitigate.
A measure needs to be in proportion to the actual risk it seeks to mitigate.
And even when they are required, it's up to the person using the stairs to determine whether they wish to elect to use the handrail or not.
[1]: IRC R311.7.8
That means, handrails cost little and have nearly no downsides. Which is why I used helmets as a metaphor. The proposed restrictions has a lot of downsides to deal with a mostly theoretical risk.