My father started his programming career in the 1970s when you were expected to wear a shirt and tie to the office every day. Then there was an energy crisis, a

My father started his programming career in the 1970s when you were expected to wear a shirt and tie to the office every day. Then there was an energy crisis, and they turned up the temperature on the air conditioners. They also let everyone wear short sleeve shirts for the first time (still ties though). My father wore short sleeves for the rest of his career, even after the energy crisis was over and the temperature returned to normal. Once you give workers a benefit it's extremely hard to go back.