I'll date myself, I'm 57. I graduated from high school in 1970. We were not allowed to wear slacks at all. Our dresses/skirts could not be more than 3" above the middle of the back of the knee. They would make us kneel down and measure them. If they were too short, you were sent home. We could wear sandals, but they could not be flip-flops. My mom would wear slacks once in a great while, but never to go to the bank or the store. At home she'd wear slacks or shorts. Even our coaches had to wear ties.
The year after I graduated I went back to visit some of my teachers. The students were wearing short shorts and halter tops. Some of them were so stoned that they were falling out of their chairs. It was truly a shock to me.
I think that's why I enjoy dressing up on cruises for dinner. We never do at home. It's always jeans and sweaters or t-shirts. It's so very nice to go into the elegant dining room and seeing the waiters dressed up, and for the most part the passengers dressed up. It just adds a little to the evening meal.
Working at a college, it is interesting to note the difference in dress around campus. Most professors dress resort casual, some are in jeans and t-shirts with flip-flops. The adjunct faculty usually dress very nicely. The staff assistants dress semi-casual. The network/computer staff, which I am one, dress in jeans and nice shirts with closed toe shoes. Mainly because we crawl around under desks a lot
The students sometimes bother to get out of their pajamas, but not often. You can definitely tell the ones that were raised by parents who care.
I appreciate someone holding a door open for me, doesn't happen too often, especially with the students. However, there are some that will and it makes me smile.
The saddest part is, most of them cannot read, write or comprehend written instructions.