Yes, you do have to man up when dealing with the extreme heat and cold. But also yes, company operations/policies can and do change overtime and that doesn't have to be looked down upon.
I think your post contains much wisdom.
I think the practice and habit of looking down on others, whether it be individuals, previous generations, or young people of the new generations is very harmful.
In regards to dealing with real and serious heat issues at UPS admittedly it does require perseverance but I think it is harmful to progress to look down on those weaker than you.
The reality is that some of those physically weaker and less able to handle the extreme temperatures are appearing to be stronger and more able to show courage by trying to challenge the unethical and harmful conditions that employees are exposed to while working for UPS.
Some of the “tougher” guys see change makers as rats or troublemakers.
But IMO, individuals who pander to the status quo of the corrupt corporate culture, particularly the corrupt corporate safety culture that exists at UPS cause more trouble for the employees of UPS and the solidarity and bargaining power UPS Teamsters.
I am so glad that at least OSHA has gotten involved with the Heat National Emphasis Program.
This should aid the Teamsters Leaders in addressing this serious issue.