I thought we weren't talking about animals? Funny how you go back to using that argument when it suits you.
Yes! You can most certainly fucking weld without a mask.Are welding masks "just a god damned fucking convenience"?
Are hard hats "just a god damned fucking convenience"?
Are seat belts "just a god damned fucking convenience"?
Are bike helmets "just a god damned fucking convenience"?
Is everything "just a god damned fucking convenience"?
Yes! You can most definitely build something without a hard hat.
Yes! Seat belts weren't even fucking invented until decades after cars were.
Yes! You can most definitely ride a bike without a god damned fucking helmet.
Pretty much! Most technology is a convenience.
Wait, are you a creationist or something, and believe man was put on this earth by a creator, complete with all modern technology or something? Is that how you think evolution worked? Or worse, one of those spoiled twits who are all "but mooooooom, I'll totally die if you take away my phone, it's a necessity for survival, whaaaaaaaaaaaaaaaaaaaaa"?
Also, it's funny how you keep ignoring the point about people who, today, don't wear shoes and function just fine, like the yet again aforementioned Zimbabwe tribe. Or just random Joes and hippie-types who don't like shoes.
Don't bother fucking replying if you're going to ignore it again. (Which means, don't bother fucking replying at all, since everyone knows you will.)