My entirely objective assessments always suggest to me that there is no danger to my being, regardless. Hence no requirement for PPE. Abseiling from the side of a building would be a bit different and then I would avail myself of safety equipment, but on general every day sites, I think it's a complete load of tosh with regard to my personal circumstances and reason for being there. I accept that the site operatives may need PPE of whatever flavour. What they don't need are ridiculous RAs and MSs, coupled with over-bearing authoritarians insisting that the rules are to be obeyed, even though they make no sense - again, back to the gloves and scaffold situation.
Anyhow, I'm an SE, therefore I am immortal.