There is an argument to be made that while it's certainly worth trying, ultimately no amount of protection is going to save you from the very worst accidents - but sliding protection will make the much more common "small" accidents like lowsides without involvement of a 3rd party much less painful and save you from a having to nurse large patches of skin back to health over the course of many weeks.
Can confirm. For my first accident I was wearing corduroys and ski gloves. It looked like my flesh was pudding and someone had dipped into it with a little teaspoon.
There is an argument to be made that while it's certainly worth trying, ultimately no amount of protection is going to save you from the very worst accidents - but sliding protection will make the much more common "small" accidents like lowsides without involvement of a 3rd party much less painful and save you from a having to nurse large patches of skin back to health over the course of many weeks.