We're all big boys if soneone decides to not wear Ppe thats on them.
But ppe only goes so far, just because u have it on does not mean u cant cut urself.
As in the original photo normal pants dont offer any protection to calfs.
Far better to actually know wot ur doing and get into safe work practices.
Never have ur body in line with the saw
Know wot causes kick back and how to avoid it.
Also know the difference how saw/log reacts to a pushing or pulling chain.
All very basic things
I will admit i dont always wear all my ppe, but i risk asses it in my head before and change my work speed/practices so im being more safety concious than normal.
I used to think the same, but in all honesty shorts or jeans/boilersuit etc, really makes no odds. Jeans wont offer any protection anyway.
Just more fibres to get stuck in wound.