Mountain Lion attacks are extremely rare. Of all the possible dangers in the woods, it is way down there. I've never thought, "I better be prepared for a mountain lion attack." And yes, I do live in an area with a healthy mountain lion population and I have personally been within 15 feet of one in the woods (unarmed).
Yep, of all the things that can go wrong out and about, fretting about a mtn lion attack is way down on the list of things I worry about around here. But our lions are hunted and that to me makes a difference.