Many people's bodies don't adjust readily, particularly the nightowl types who are already social pariahs because their biorhythms don't wake up early, even if they get up and go to work. They tend to hit their stride in the afternoon when others are waning and watching the clock to go home. It's very stressful, especially on families with children, to start hauling them out of bed earlier, even if you have tried to ease them up to it the week before. And for older people, it takes longer every year for the body to adjust.
Secondly, with people traveling and living at great distances, it is difficult to remember when to call overseas clients or family, or to have them call you, when there is a patchwork of DST and GMT, etc.
Thirdly, government has moved the "spring forward" date earlier than in past years, so even people whose minds unconsciously prepare for repeated annual events are getting hammered by that.
My response to your concerns is a very insincere boo-hoo-hoo.