Comment by JonChesterfield

I don't know where to stand on this one.

I've got a table saw. The extent of my training on how to use it was my design tech teacher saying very clearly that none of us were ever to use it and some YouTube video of dubious information content. I bought it from Amazon, nothing approximating a check that I had any idea what to do with it.

I am very frightened of it and thus far only slightly injured. An automated stop thing would make me much less frightened. Possibly more frequently injured as a direct result.

Having the option to buy a more expensive saw which slags itself instead of your finger is a good thing. Making the ones without that feature illegal is less obvious. I think I'd bolt a circular saw under a table if that came to pass.

A gunpowder charge shoving a piece of aluminium into the blade on a handheld circular saw would be pretty lethal in itself. Lots of angular momentum there - jam the blade and the whole thing is going to spin.

It seems dubious that I can buy things like circular saws and angle grinders without anything along the lines of some training course first. That angle grinder definitely tries to kill me on occasion. That might be a better path to decreasing injuries.