Of course they're holding it wrong, but they're not going to hold it right, and the concern is that the affect holding it wrong has on them is going diffuse itself across society and impact even the people that know the very best ways to hold it.
Still, is the solution more hand holding, more lock-in, more safety? I would argue otherwise. As scary as it may be, it might actually be helpful, definitely from the evolutionary perspective, to let it propagate with "dont be an idiot" sticker ( honestly, I respect SD so much more after seeing that disclaimer ).
And if it helps, I am saying this as mildly concerned parent.
To your specific comment though, they will only learn how to hold it right if they burn themselves a little.
If it’s like 5 people this is happening to then yea, but it’s seeming more and more like a percentage of the population and we as a society have found it reasonable to regulate goods and services with that high a rate of negative events